Works matching DE "KETENES"

Results: 340

Dearomatic Sulfur‐Shifted Ene Reaction of 3‐Thiiranylbenzo[b]Thiophenes and Ketenes: Further Studies and Experimental Evidence.

Published in:

Asian Journal of Organic Chemistry, 2025, v. 14, n. 7, p. 1, doi. 10.1002/ajoc.202500159

By:

Wang, Yinqiao;
Xu, Jiaxi

Publication type:

Article

Relationship between wettability and sizing degree of paper containing bulking agent.

Published in:

Journal of Wood Science, 2011, v. 57, n. 1, p. 34, doi. 10.1007/s10086-010-1136-z

By:

Jin, Hailan;
Okayama, Takayuki;
Ohtani, Hajime;
Arai, Ryota

Publication type:

Article

Influence of addition of bulking promoter on AKD-sizing performance.

Published in:

Journal of Wood Science, 2010, v. 56, n. 2, p. 127, doi. 10.1007/s10086-009-1077-6

By:

Jin, Hailan;
Okayama, Takayuki;
Ohtani, Hajime

Publication type:

Article

Photolytic Studies on the Generation and Trapping of 6‐Oxomethylidenecyclohexa‐2,4‐diene‐1‐one Derivatives with Various Nucleophiles.

Published in:

Helvetica Chimica Acta, 2021, v. 104, n. 12, p. 1, doi. 10.1002/hlca.202100189

By:

Mies, Thomas;
White, Andrew J. P.;
Parsons, Philip J.;
Barrett, Anthony G. M.

Publication type:

Article

Identification of Two New Phosphorylated Polyketides from a Brazilian Streptomyces sp. Through the Use of LC- SPE/ NMR.

Published in:

Helvetica Chimica Acta, 2016, v. 99, n. 4, p. 281, doi. 10.1002/hlca.201500038

By:

Thomasi, Sérgio Scherrer;
Ladeira, Cecília;
Ferreira, Douglas;
Fontoura Sprenger, Ricardo;
Badino, Alberto Colli;
Ferreira, Antonio Gilberto;
Venâncio, Tiago

Publication type:

Article

An Efficient Synthesis of Chromeno[2,3- d]pyrimidine-2,4-diones with a Nitroketene-Aminal Moiety at C(5) by a One-Pot Four-Component Reaction.

Published in:

Helvetica Chimica Acta, 2015, v. 98, n. 5, p. 663, doi. 10.1002/hlca.201400276

By:

Alizadeh, Abdolali;
Ghanbaripour, Rashid;
Weng Ng, Seik

Publication type:

Article

New Route for the Synthesis of Four-Membered Cyclic Ketene Dithioacetals.

Published in:

Helvetica Chimica Acta, 2015, v. 98, n. 1, p. 67, doi. 10.1002/hlca.201400127

By:

Habibi, Azizollah;
Valizadeh, Yousef;
Alizadeh, Abdolali

Publication type:

Article

Reactions of Acid Chlorides/Ketenes with 2-Substituted 4,5-Dihydro-4,4-dimethyl-1,3-thiazoles: Formation of Penam Derivatives.

Published in:

Helvetica Chimica Acta, 2013, v. 96, n. 8, p. 1462, doi. 10.1002/hlca.201300165

By:

Shi, Junxing;
Linden, Anthony;
Heimgartner, Heinz

Publication type:

Article

An Efficient One-Pot Four-Component Synthesis of Functionalized Imidazo[1,2- a]pyridines.

Published in:

Helvetica Chimica Acta, 2013, v. 96, n. 3, p. 525, doi. 10.1002/hlca.201200231

By:

Kazemi Movahed, Siyavash;
Dabiri, Minoo;
Bazgir, Ayoob

Publication type:

Article

1,2-Bis(trifluoromethyl)ethene-1,2-dicarbonitrile: Enol Ethers and Ketene Acetals as Cycloaddition Partners.

Published in:

Helvetica Chimica Acta, 2012, v. 95, n. 7, p. 1049, doi. 10.1002/hlca.201200217

By:

Huisgen, Rolf;
Desmaison, Gonzalo Urrutia

Publication type:

Article

Mechanistic Investigation of the Ring Opening in the Staudinger Cycloaddition Involving Ketenes with Electron-Withdrawing Substituents.

Published in:

Helvetica Chimica Acta, 2012, v. 95, n. 7, p. 1079, doi. 10.1002/hlca.201100483

By:

Mo, Shanyan;
Xu, Jiaxi

Publication type:

Article

1,2-Bis(trifluoromethyl)ethene-1,2-dicarbonitrile and Vinyl Ethers: Cyclic Ketene Imines on the Pathway to 1 : 2 Cycloadducts.

Published in:

Helvetica Chimica Acta, 2012, v. 95, n. 5, p. 673, doi. 10.1002/hlca.201200047

By:

Urrutia Desmaison, Gonzalo;
Huisgen, Rolf;
Nöth, Heinrich

Publication type:

Article

Preparation of Pseudo-Peptide Building Blocks with retro-Thioamide Bond Mediated via Thiocarbamoyl Meldrum's Acid.

Published in:

Helvetica Chimica Acta, 2012, v. 95, n. 3, p. 461, doi. 10.1002/hlca.201100347

By:

Janikowska, Karolina;
Makowiec, Sławomir;
Rachoń, Janusz

Publication type:

Article

New Polyketides Isolated from Botryosphaeria australis Strain ZJ12-1A.

Published in:

Helvetica Chimica Acta, 2011, v. 94, n. 5, p. 897, doi. 10.1002/hlca.201000345

By:

Yu-Hang Xu;
Chun-Hua Lu;
Zhong-Hui Zheng;
Yue-Mao Shen

Publication type:

Article

Characterization of a novel two-component regulatory system involved in the regulation of both actinorhodin and a type I polyketide in Streptomyces coelicolor.

Published in:

Applied Microbiology & Biotechnology, 2007, v. 77, n. 3, p. 625, doi. 10.1007/s00253-007-1184-5

By:

Yinhua Lu;
Weihua Wang;
Dan Shu;
Weiwen Zhang;
Lei Chen;
Zhongjun Qin;
Sheng Yang;
Weihong Jiang

Publication type:

Article

Avermectin: biochemical and molecular basis of its biosynthesis and regulation.

Published in:

Applied Microbiology & Biotechnology, 2004, v. 63, n. 6, p. 626, doi. 10.1007/s00253-003-1491-4

By:

Yoon, Y. J.;
Kim, E.-S.;
Hwang, Y.-S.;
Choi, C.-Y.

Publication type:

Article

Enantioselective Addition of Diketene to Aldehydes Promoted by Chiral Schiff Base-Titanium Alkoxide Complex. Application to Asymmetric Synthesis of Potential Inhibitors of HMG Coenzyme Reductase.

Published in:

Israel Journal of Chemistry, 2001, v. 41, n. 4, p. 241, doi. 10.1560/PX53-Y9JJ-FU8V-GKEN

By:

Hayashi, Masahiko;
Yoshimoto, Kazuya;
Hirata, Naohito;
Tanaka, Kiyoshi;
Oguni, Nobuki;
Harada, Katsumasa;
Matsushita, Akio;
Kawachi, Yasuhiro;
Sasaki, Hiroshi

Publication type:

Article

Theoretical Study for the [2+2] Cycloaddition Reaction Mechanism of Ketenes and their Derivatives.

Published in:

Oriental Journal of Chemistry, 2019, v. 35, n. 5, p. 1550, doi. 10.13005/ojc/350512

By:

MOHAMMAD-SALIM, HAYDAR A.;
ABDALLAH, HASSAN H.

Publication type:

Article

A facile route to ketene-functionalized polymers for general materials applications.

Published in:

Nature Chemistry, 2010, v. 2, n. 3, p. 207, doi. 10.1038/nchem.538

By:

Leibfarth, Frank A.;
Kang, Minhyuk;
Ham, Myungsoo;
Kim, Joohee;
Campos, Luis M.;
Gupta, Nalini;
Moon, Bongjin;
Hawker, Craig J.

Publication type:

Article

Polymer synthesis: Facilitating functionality.

Published in:

Nature Chemistry, 2010, v. 2, n. 3, p. 164, doi. 10.1038/nchem.563

By:

Rimmer, Steve

Publication type:

Article

The Production of Ketene and C5O2 from CO2, N2 and CH4 in a Non-thermal Plasma Catalysed by Earth-Abundant Elements: An In-Situ FTIR Study.

Published in:

Plasma Chemistry & Plasma Processing, 2018, v. 38, n. 3, p. 461, doi. 10.1007/s11090-018-9889-z

By:

Christensen, P. A.;
Ali, Abd Halim Bin Md;
Mashhadani, Z. T. A. W.;
Carroll, M. A.;
Martin, P. A.

Publication type:

Article

Matrix IR Study of Benzene Transformations in a Pulsed Glow Discharge in the Absence and the Presence of Oxygen.

Published in:

Plasma Chemistry & Plasma Processing, 2014, v. 34, n. 6, p. 1345, doi. 10.1007/s11090-014-9576-7

By:

Boganov, Sergey;
Kudryashov, Sergey;
Ryabov, Andrey;
Suslov, Alexey;
Rynin, Stanislav;
Egorov, Mikhail;
Nefedov, Oleg

Publication type:

Article

Combinatorial polyketide biosynthesis by de novo design and rearrangement of modular polyketide synthase genes.

Published in:

Nature Biotechnology, 2005, v. 23, n. 9, p. 1171, doi. 10.1038/nbt1128

By:

Menzella, Hugo G.;
Reid, Ralph;
Carney, John R.;
Chandran, Sunil S.;
Reisinger, Sarah J.;
Patel, Kedar G.;
Hopwood, David A.;
Santi, Daniel V.

Publication type:

Article

Pyrazinyl- and pyrimidinylketenes, bisketenes, and ylides: direct observation and nucleophilic reactivity.

Published in:

Canadian Journal of Chemistry, 2014, v. 92, n. 12, p. 1119, doi. 10.1139/cjc-2014-0208

By:

Allen, Annette D.;
Fedorov, Andrei V.;
Fu, Nanyan;
Kobayashi, Shinjiro;
Tidwell, Thomas T.;
Vukovic, Sinisa;
Badal, Md. Mizanur Rahman;
Mishima, Masaaki

Publication type:

Article

Synthesis of new γ-lactones from preactivated monosubstituted pyrazines and TMS-ketene acetals.

Published in:

Canadian Journal of Chemistry, 2012, v. 90, n. 5, p. 469, doi. 10.1139/v2012-016

By:

Garduño-Alva, Azucena;
Ortega-Alfaro, M. Carmen;
López-Cortés, José G.;
Chávez, Isabel;
Barroso-Flores, Joaquin;
Toscano, Rubén A.;
Rudler, Henri;
Álvarez-Toledano, Cecilio

Publication type:

Article

Chemoselective photochemical surface reaction - Ketene versus carbene reactivity from the photolysis of saturated monolayers of pyridyl diazoesters on single-crystal Pt.

Published in:

Canadian Journal of Chemistry, 2011, v. 89, n. 2, p. 117, doi. 10.1139/V10-113

By:

Pitters, Jason L.;
Adkinson, Dana K.;
Griffiths, Keith;
Norton, Peter R.;
Workentin, Mark S.

Publication type:

Article

Photochemistry of matrix-isolated 5-cyano-2H-pyran-2-one (δ-cyano-α-pyrone) and cyanocyclobuta-1,3-diene.

Published in:

Canadian Journal of Chemistry, 2011, v. 89, n. 2, p. 186, doi. 10.1139/V10-094

By:

Menke, Jessica L.;
McMahon, Robert J.

Publication type:

Article

Generation, observation, and reactivity of furyl- and thienylketenes and bisketenes.

Published in:

Canadian Journal of Chemistry, 2008, v. 86, n. 4, p. 333, doi. 10.1139/V08-021

By:

Fu, N.;
Allen, A. D.;
Chan, W.;
Kobayashi, S.;
Tidwell, T. T.;
Tahmassebi, D.;
Aguilar, A.;
Peña Cabrera, E.;
Godoy, J.

Publication type:

Article

The 2-oxo-3,3,5,5-tetramethylcyclopentanecarboxylic acid keto–enol system in aqueous solution — Generation of the enol by flash photolytic Wolff rearrangement of 2-diazo-4,4,6,6-tetramethylcyclohexane-1,3-dione followed by hydration of the acylketene thus formed

Published in:

Canadian Journal of Chemistry, 2005, v. 83, n. 1, p. 68, doi. 10.1139/V04-152

By:

Chiang, Y.;
Kresge, A. J.;
Nikolaev, V. A.;
Onyido, I.;
Zeng, X.

Publication type:

Article

Insertion reactions of nitrosobenzene and ketenes into silaaziridines.

Published in:

Canadian Journal of Chemistry, 2003, v. 81, n. 11, p. 1164, doi. 10.1139/V03-001

By:

Brook, Adrian G.;
Habtemariam, Abraha

Publication type:

Article

Generation of 6-methylene-2,4-cyclohexadienylidene ketene by flash photolysis of benzocyclobutenone in aqueous solution and study of the reactions of this ketene in that medium.

Published in:

Canadian Journal of Chemistry, 2003, v. 81, n. 6, p. 607, doi. 10.1139/v03-038

By:

Chiang, Y;
Kresge, A J;
Zhan, H -Q

Publication type:

Article

On the generation of oxirene and dimethyloxirene by retro-Diels–Alder reactions, and reactions of dimethyloxirene: a computational study.

Published in:

Canadian Journal of Chemistry, 2002, v. 80, n. 1, p. 94, doi. 10.1139/v01-194

By:

Delamere, C;
Jakins, C;
Lewars, E

Publication type:

Article

ADDITIONS AND CORRECTIONS/AJOUTS ET CORRECTIONSAdditions and corrections: Expoxide of a ketene acetal. The first 2,2-dialkoxyoxirane to be isolated.

Published in:

2001

By:

Dawid, Malgorzata;
Venneri, Paul C;
Warkentin, John

Publication type:

Correction Notice

Diaryloxycarbenes from oxadiazolines.

Published in:

Canadian Journal of Chemistry, 2001, v. 79, n. 3, p. 319, doi. 10.1139/v01-016

By:

Lu, Xiaosong;
Reid, Darren L;
Warkentin, John

Publication type:

Article

Epoxide of a ketene acetal. The first 2,2-dialkoxyoxirane to be isolated.

Published in:

Canadian Journal of Chemistry, 2001, v. 79, n. 2, p. 110, doi. 10.1139/v00-202

By:

Dawid, Malgorzata;
Venneri, Paul C;
Warkentin, John

Publication type:

Article

Elucidation of a side reaction occurring during nitroxide-mediated polymerization of cyclic ketene acetals by tandem mass spectrometric end-group analysis of aliphatic polyesters.

Published in:

Rapid Communications in Mass Spectrometry: RCM, 2015, v. 29, n. 23, p. 2302, doi. 10.1002/rcm.7397

By:

Albergaria Pereira, Bruna de Fátima;
Tardy, Antoine;
Monnier, Valérie;
Guillaneuf, Yohann;
Gigmes, Didier;
Charles, Laurence

Publication type:

Article

Novel Environment-friendly Yellow Pigments Based on (Bi, La)VO4.

Published in:

Chemistry Letters, 2011, v. 40, n. 8, p. 22, doi. 10.1246/cl.2011.792

By:

Ikawa, Ken-ichi;
Masui, Toshiyuki;
Imanaka, Nobuhito

Publication type:

Article

Double Nucleophilic Addition to Acrolein with Ketene Silyl Acetals and Allylborolanes Catalyzed by Proline.

Published in:

Chemistry Letters, 2011, v. 40, n. 8, p. 21, doi. 10.1246/cl.2011.862

By:

Shimizu, Makoto;
Kawanishi, Mami;
Itoh, Akinori;
Mizota, Isao;
Hachiya, Iwao

Publication type:

Article

Radical Addition of Alkyl Halides to 2-Methylene-1,3-dithiane Monoxide as a Ketene Equivalent.

Published in:

Chemistry Letters, 2009, v. 38, n. 3, p. 27, doi. 10.1246/cl.2009.248

By:

Yoshida, Suguru;
Yorimitsu, Hideki;
Oshima, Koichiro

Publication type:

Article

A Convenient Method for the Synthesis of (Z)-α-Fluoroacrylates: Lewis Base-catalyzed Carbonyl Fluoroolefination Using Fluoro(trimethylsilyl)ketene Ethyl Trimethylsilyl Acetal.

Published in:

Chemistry Letters, 2008, v. 37, n. 8, p. 40, doi. 10.1246/cl.2008.890

By:

Michida, Makoto;
Mukaiyama, Teruaki

Publication type:

Article

Regio- and Stereoselective Hydrothiolation Reactions of Ynamides with Diphenyldithiophosphinic Acid: Straightforward Synthesis of Ketene N,S-Acetal Derivatives.

Published in:

Chemistry Letters, 2008, v. 37, n. 1, p. 40, doi. 10.1246/cl.2008.40

By:

Yasui, Hiroto;
Yorimitsu, Hideki;
Oshima, Koichiro

Publication type:

Article

Mukaiyama Aldol Reaction of Ester Acceptors: Organoaluminums Catalyze Nucleophilic Addition of Ketene Silyl Acetals.

Published in:

Chemistry Letters, 2007, v. 36, n. 4, p. 538, doi. 10.1246/cl.2007.538

By:

Iwata, Shin;
Hamura, Toshiyuki;
Matsumoto, Takashi;
Suzuki, Keisuke

Publication type:

Article

Isolation and Characterization of an Allenylthioketene and 4-Methylenecyclobutenethiones Generated by Thermal Reaction of Alkynyl Propargyl Sulfides.

Published in:

Chemistry Letters, 2006, v. 35, n. 9, p. 5, doi. 10.1246/cl.2006.992

By:

Aoyagi, Shigenobu;
Sugimura, Katsuaki;
Kanno, Nobuya;
Watanabe, Dai;
Shimada, Kazuaki;
Takikawa, Yuji

Publication type:

Article

Lewis Base-catalyzed Diastereoselective Mannich-type Reaction between Ketene Silyl Acetals and Chiral Sulfinimines.

Published in:

Chemistry Letters, 2005, v. 34, n. 4, p. 468, doi. 10.1246/cl.2005.468

By:

Takahashi, Eiki;
Fujisawa, Hidehiko;
Yanai, Toshiharu;
Mukaiyama, Teruaki

Publication type:

Article

One-pot Synthesis of β-Lactams from Aldimines and Ketene Silyl Acetals by Tandem Lewis Base-catalyzed Mannich-type Addition and Cyclization.

Published in:

Chemistry Letters, 2005, v. 34, n. 2, p. 216, doi. 10.1246/cl.2005.216

By:

Takahashi, Eiki;
Fujisawa, Hidehiko;
Yanai, Toshiharu;
Mukaiyama, Teruaki

Publication type:

Article

TTMPP Catalyzed One-pot Silyl Ketene Acetal-Imine Condensation Route to β-Lactams.

Published in:

Chemistry Letters, 2004, v. 33, n. 12, p. 1626, doi. 10.1246/cl.2004.1626

By:

Matsukawa, Satoru;
Obu, Kayoko

Publication type:

Article

A Cation-exchange Resin Promoted Imino Aldol Reaction, Leading to the Synthesis of 2-Isocephem and 2-Oxa-isocephem.

Published in:

Chemistry Letters, 2004, v. 33, n. 10, p. 1394, doi. 10.1246/cl.2004.1394

By:

Shimizu, Makoto;
Tachi, Masanori;
Hachiya, Iwao

Publication type:

Article

A Novel Synthesis of syn and anti β-Hydroxy Dithioacetals, Masked Cross-Aldols between Aldehydes.

Published in:

Chemistry Letters, 2004, v. 33, n. 8, p. 1032, doi. 10.1246/cl.2004.1032

By:

Saitoh, Terunobu;
Jimbo, Naohisa;
Ichikawa, Junji

Publication type:

Article

Synthesis of Model Compound Containing an Indole Spiro-β-lactam Moiety with Vinylchloride in Chartellines.

Published in:

Chemistry Letters, 2004, v. 33, n. 4, p. 440, doi. 10.1246/cl.2004.440

By:

Nishikawa, Toshio;
Kajii, Shigeo;
Isobe, Minoru

Publication type:

Article

Fungal metabolism: Completing the circle.

Published in:

Nature Reviews Microbiology, 2009, v. 7, n. 12, p. 842, doi. 10.1038/nrmicro2276

By:

Molloy, Sheilagh

Publication type:

Article