Works matching DE "KETENES"

Results: 339

Site selectivity in reactions of hydrazonoyl halides with ketene-N,S-acetals.

Published in:

Journal of Sulfur Chemistry, 2008, v. 29, n. 5, p. 521, doi. 10.1080/17415990802105580

By:

Shawali, AhmadS.;
Sayed, AbdelwahedR.;
Zayed, MohieM.

Publication type:

Article

Ketene N,S-acetals in heterocyclic synthesis: Part 1: Synthesis of N-phenyl-2-ylidene and 2,5-diylidene-4-thiazolidinone derivatives.

Published in:

Journal of Sulfur Chemistry, 2007, v. 28, n. 6, p. 563, doi. 10.1080/17415990701586823

By:

Farhat, M.F.;
El-Saghier, A.M. M.;
Makhlouf, M.A.;
Kreddan, K.M.;
Elmezoughi, A.B.

Publication type:

Article

Reaction of CH-acidic compounds with thiacumulenes and alkylation with dihaloalkanes.

Published in:

Journal of Sulfur Chemistry, 2005, v. 26, n. 6, p. 499, doi. 10.1080/00268970500470266

By:

Forgber, S.;
Cleve, D.;
Rudorf, W.-D.

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

Facile [7C+1C] Annulation as an Efficient Route to Tricyclic Indolizidine Alkaloids.

Published in:

Angewandte Chemie, 2013, v. 125, n. 35, p. 9441, doi. 10.1002/ange.201303604

By:

Xu, Xianxiu;
Zhang, Lingjuan;
Liu, Xiqing;
Pan, Ling;
Liu, Qun

Publication type:

Article

Mechanism of the Phospha-Wittig-Horner Reaction.

Published in:

Angewandte Chemie, 2013, v. 125, n. 25, p. 6612, doi. 10.1002/ange.201301469

By:

Arkhypchuk, Anna I.;
Svyaschenko, Yurii V.;
Orthaber, Andreas;
Ott, Sascha

Publication type:

Article

The study of the PES and the reaction mechanism between ketene and Lithium Carbenoids and the formation of cyclopropanone.

Published in:

Theoretical Chemistry Accounts: Theory, Computation, & Modeling, 2023, v. 142, n. 4, p. 1, doi. 10.1007/s00214-023-02965-2

By:

Villablanca, Daniel;
Gazzari, Sasha;
Herrera, Bárbara

Publication type:

Article

The Polyketide Components of Waxes and the Cer-cqu Gene Cluster Encoding a Novel Polyketide Synthase, the β-Diketone Synthase, DKS.

Published in:

Plants (2223-7747), 2017, v. 6, n. 3, p. 28, doi. 10.3390/plants6030028

By:

von Wettstein-Knowles, Penny

Publication type:

Article

Harnessing the Ketene Chemistry by Transition‐Metal‐Catalyzed C−H Functionalization.

Published in:

Asian Journal of Organic Chemistry, 2025, v. 14, n. 4, p. 1, doi. 10.1002/ajoc.202400768

By:

Feng, Zhiming;
Xie, Yushan;
Wu, Lili;
Wang, Chengming

Publication type:

Article

Intramolecular [2+2] Cycloadditions of α‐Heteroatom Substituted γ,δ‐Unsaturated Ketenes.

Published in:

Asian Journal of Organic Chemistry, 2024, v. 13, n. 10, p. 1, doi. 10.1002/ajoc.202400302

By:

Liu, Tzi‐Chi;
Lin, Zih‐Hao;
Yoo, Woo‐Jin

Publication type:

Article

Higher‐Order Cycloaddition of N‐Aromatic Zwitterions and Ketenes to Access Diazepine Derivatives.

Published in:

Asian Journal of Organic Chemistry, 2019, v. 8, n. 9, p. 1654, doi. 10.1002/ajoc.201900353

By:

Lee, Ju Young;
Kim, Jiyoung;
Lee, Ji Hye;
Hwang, Hyonseok;
Yoo, Eun Jeong

Publication type:

Article

Palladium on Layered Double Hydroxide: A Heterogeneous System for the Enol Phosphate Carbon-Oxygen Bond Activation in Aqueous Media.

Published in:

Journal of Chemistry, 2017, p. 1, doi. 10.1155/2017/8418939

By:

Senra, Jaqueline D.;
Silva, Aires C.;
Santos, Raquel V.;
Malta, Luiz Fernando B.;
Simas, Alessandro B. C.

Publication type:

Article

Synthese und Katalyse kurz notiert.

Published in:

Nachrichten aus der Chemie, 2023, v. 71, n. 4, p. 63, doi. 10.1002/nadc.20234135601

By:

Leusmann, Eliza

Publication type:

Article

Synthesis of polysubstituted 2-azetidinones via in situ generation of a vanillinyl ketene and electrocyclic reaction of the corresponding zwitterionic intermediate.

Published in:

Research on Chemical Intermediates, 2018, v. 44, n. 1, p. 691, doi. 10.1007/s11164-017-3128-8

By:

Nejad, Nafiseh Kamali;
Islami, Mohammad Reza

Publication type:

Article

Recent developments in the heterocyclic ketene aminal-based synthesis of heterocycles.

Published in:

Research on Chemical Intermediates, 2016, v. 42, n. 6, p. 5617, doi. 10.1007/s11164-015-2391-9

By:

Yang, Peng

Publication type:

Article

Reaction pathways of carboxylic acids over TiO[sub 2] single crystal surfaces: diketene formation from bromo-acetic acid.

Published in:

Research on Chemical Intermediates, 2003, v. 29, n. 6, p. 553, doi. 10.1163/156856703322539618

By:

Titheridge, D. J.;
Wilson, J. N.;
Idriss, H.

Publication type:

Article

Separation and analysis techniques for bound and unbound alkyl ketene dimer (AKD) in paper: A review.

Published in:

Arabian Journal of Chemistry, 2016, v. 9, p. S1636, doi. 10.1016/j.arabjc.2012.04.019

By:

Kumar, Sunil;
Chauhan, Vipul S.;
Chakrabarti, Swapan K.

Publication type:

Article

A Novel One-Pot Method for the Synthesis of Pyrimidine Derivatives Using Ketene N,S-Acetal with Aryl Aldehydes.

Published in:

Journal of Heterocyclic Chemistry, 2016, v. 53, n. 1, p. 197, doi. 10.1002/jhet.2397

By:

Hagimori, Masayori;
Murakami, Yuka;
Mizuyama, Naoko;
Tominaga, Yoshinori

Publication type:

Article

Cyclocondensation of Ethyl (imidazolidine-2-ylidene)acetate with Aromatic Esters Bearing Labile Halogen in ortho-Position.

Published in:

Journal of Heterocyclic Chemistry, 2015, v. 52, n. 4, p. 1192, doi. 10.1002/jhet.2229

By:

Dar'in, D. V.;
Ivanov, А. Yu.;
Lobanov, P. S.

Publication type:

Article

One-pot Synthesis of Fully Substituted Pyrimidines Using Amidine and Ketene Dithioacetals as Synthons and Their Antimicrobial Activity.

Published in:

Journal of Heterocyclic Chemistry, 2015, v. 52, n. 3, p. 751, doi. 10.1002/jhet.2184

By:

Gami, Sagar P.;
Kathrotiya, Haresh G.;
Naliapara, Yogesh T.

Publication type:

Article

Thermal Decomposition of Carbamoyl Meldrumâ€™s Acids: A Starting Point for the Preparation of 1,3-Oxazine Derivativesfor the Preparation of 1,3-Oxazine Derivatives.

Published in:

Journal of Heterocyclic Chemistry, 2015, v. 52, n. 1, p. 205, doi. 10.1002/jhet.2028

By:

Makowiec, Sławomir;
Najda, Ewelina;
Janikowska, Karolina

Publication type:

Article

Site- and Regioselectivity of the Reaction of Hydrazonoyl Chlorides with Perimidine Ketene Aminal. Antimicrobial Evaluation of the Products.

Published in:

Journal of Heterocyclic Chemistry, 2015, v. 52, n. 1, p. 86, doi. 10.1002/jhet.1985

By:

Farghaly, Thoraya A.;
Mahmoud, Huda K.

Publication type:

Article

A Facile Diversity-Oriented Multicomponent.

Published in:

Journal of Heterocyclic Chemistry, 2014, v. 51, p. E358, doi. 10.1002/jhet.1899

By:

Yerande, Swapnil G.;
More, Sunil D.;
Bhandari, Mayur;
Newase, Kiran M.;
Khoury, Kareem;
Wang, Kan;
Dömling, Alexander

Publication type:

Article

A Facile Method for the Synthesis of Aroyl Pyrazoles from Functionalized Ketene Dithioacetals.

Published in:

Journal of Heterocyclic Chemistry, 2014, v. 51, n. 3, p. 562, doi. 10.1002/jhet.1954

By:

Sreedevi, N. K.;
Mathews, A.;
Devaky, K. S.;
Anabha, E. R.

Publication type:

Article

Microwave-Assisted Solvent-Free Synthesis of Highly Functionalized Pyrimidine Derivatives.

Published in:

Journal of Heterocyclic Chemistry, 2012, v. 49, n. 4, p. 877, doi. 10.1002/jhet.891

By:

Yan, Shengjiao;
Niu, Yanfei;
Chen, Xuebing;
Liu, Yongjiang;
Lin, Jun

Publication type:

Article

Reactivity of ketene dithiolates toward alkyl bromides.

Published in:

Journal of Heterocyclic Chemistry, 2011, v. 48, n. 4, p. 973, doi. 10.1002/jhet.484

By:

Padmavathi, Venkatapuram;
Reddy, Guda Dinneswara;
Reddy, Gali Sudhakar;
Mahesh, Konda;
Padmaja, Adivireddy

Publication type:

Article

An antibiotic factory caught in action.

Published in:

Nature Structural & Molecular Biology, 2004, v. 11, n. 9, p. 888, doi. 10.1038/nsmb808

By:

Keatinge-Clay, Adrian T.;
Maltby, David A.;
Medzihradszky, Katalin F.;
Khosla, Chaitan;
Stroud, Robert M.

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

Type I Polyketide Synthases May Have Evolved Through Horizontal Gene Transfer.

Published in:

Journal of Molecular Evolution, 2005, v. 60, n. 6, p. 716, doi. 10.1007/s00239-004-0161-1

By:

Ginolhac, Aurélien;
Jarrin, Cyrille;
Robe, Patrick;
Perrière, Guy;
Vogel, Timothy;
Simonet, Pascal;
Nalin, Renaud

Publication type:

Article

Evolutionary Affiliations Within the Superfamily of Ketosynthases Reflect Complex Pathway Associations.

Published in:

Journal of Molecular Evolution, 2003, v. 56, n. 4, p. 446, doi. 10.1007/s00239-002-2415-0

By:

Moffitt, Michelle C.;
Neilan, Brett A.

Publication type:

Article

N‐Heterocyclic Carbene (NHC)‐Catalyzed Transformations Involving Azolium Enolates.

Published in:

Chemical Record, 2022, v. 22, n. 8, p. 1, doi. 10.1002/tcr.202200054

By:

Mondal, Santigopal;
Ghosh, Arghya;
Biju, Akkattu T.

Publication type:

Article

Approach to Pyrido[2,1- b ][1,3]benzothiazol-1-ones via In Situ Generation of Acyl(1,3-benzothiazol-2-yl)ketenes by Thermolysis of Pyrrolo[2,1- c ][1,4]benzothiazine-1,2,4-triones.

Published in:

Molecules, 2023, v. 28, n. 14, p. 5495, doi. 10.3390/molecules28145495

By:

Lystsova, Ekaterina A.;
Novikov, Alexander S.;
Dmitriev, Maksim V.;
Maslivets, Andrey N.;
Khramtsova, Ekaterina E.

Publication type:

Article

Cycloaddition of 4-Acyl-1 H -pyrrole-2,3-diones Fused at [ e ]-Side and Cyanamides: Divergent Approach to 4 H -1,3-Oxazines.

Published in:

Molecules, 2022, v. 27, n. 16, p. 5257, doi. 10.3390/molecules27165257

By:

Khramtsova, Ekaterina E.;
Krainov, Aleksandr D.;
Dmitriev, Maksim V.;
Maslivets, Andrey N.

Publication type:

Article

The killer of Socrates: Coniine and Related Alkaloids in the Plant Kingdom.

Published in:

Molecules, 2017, v. 22, n. 11, p. 1962, doi. 10.3390/molecules22111962

By:

Hotti, Hannu;
Rischer, Heiko

Publication type:

Article

One-Pot Green Regioselesctive Synthesis of γ-Lactones from Epoxides and Ketene Silyl Acetals Using 1,3-Dimethylimidazolium Fluoride a Recoverable Metal-Free Catalyst.

Published in:

Molecules, 2017, v. 22, n. 9, p. 1385, doi. 10.3390/molecules22091385

By:

Keshavarz, Mosadegh;
Ahmady, Amanollah Zarei;
Mostoufi, Azar;
Mohtasham, Neda

Publication type:

Article

Antiangiogenic Polyketides from Peperomia dindygulensis Miq.

Published in:

Molecules, 2012, v. 17, n. 4, p. 4474, doi. 10.3390/molecules17044474

By:

Qi-Wei Wang;
De-Hong Yu;
Meng-Gan Lin;
Mei Zhao;
Wen-Jun Zhu;
Qin Lu;
Gui-Xiu Li;
Chao Wang;
Yi-Fang Yang;
Xue-Mei Qin;
Chao Fang;
Hong-Zhuan Chen;
Guo-Hong Yang

Publication type:

Article

Rhodium-Catalyzed Linear Codimerization and Cycloaddition of Ketenes with Alkynes.

Published in:

Molecules, 2010, v. 15, n. 6, p. 4189, doi. 10.3390/molecules15064189

By:

Kondo, Teruyuki;
Niimi, Masatsugu;
Yoshida, Yuki;
Wada, Kenji;
Mitsudo, Take-aki;
Kimura, Yu;
Toshimitsu, Akio

Publication type:

Article

Synthesis of Some New Mono- and Bis-Polycyclic Aromatic Spiro and Bis-Nonspiro-β-Lactams.

Published in:

Molecules, 2010, v. 15, n. 1, p. 515, doi. 10.3390/molecules15010515

By:

Jarrahpour, Aliasghar;
Ebrahimi, Edris

Publication type:

Article

Reactions of ketene aminals with n-arylmaleimides and dimethyl acetylenedicarboxylate, a direct pathway to derivatives of pyrrolo[1,2- a]imidazole and imidazo[1,2- a]pyridine.

Published in:

Chemistry of Heterocyclic Compounds, 2012, v. 48, n. 8, p. 1204, doi. 10.1007/s10593-012-1123-y

By:

Orlov, V.;
Kharchenko, Yu.;
Gella, I.;
Omel'chenko, I.;
Shishkin, O.

Publication type:

Article

Dioxothietanylation of NH-heterocycles.

Published in:

Chemistry of Heterocyclic Compounds, 2011, v. 47, n. 4, p. 519, doi. 10.1007/s10593-011-0791-3

By:

Klen, E.;
Makarova, N.;
Khaliullin, F.

Publication type:

Article

4-Hydroxy-2-quinolones 119. Reaction of ethyl 1-R-4-chloro-2-oxo-1,2-dihydroquinoline-3-carboxylate with malononitrile.

Published in:

Chemistry of Heterocyclic Compounds, 2007, v. 43, n. 6, p. 722, doi. 10.1007/s10593-007-0118-6

By:

Ukrainets, I. V.;
Bereznyakova, N. L.;
Parshikov, V. A.;
Shishkina, S. V.

Publication type:

Article

Ketene S,S-acetals in the synthesis of some new fused pyrimidine derivatives.

Published in:

Chemistry of Heterocyclic Compounds, 2007, v. 43, n. 3, p. 382, doi. 10.1007/s10593-007-0056-3

By:

Metwally, M.;
Desoky, E.;
Fawzy, R.;
Etman, H.

Publication type:

Article

Investigation of the Interaction of 5-Aryl-2,3-dihydro-2,3-furandiones with Compounds Containing C=N and C≡N Bonds Simultaneously.

Published in:

Chemistry of Heterocyclic Compounds, 2005, v. 41, n. 10, p. 1245, doi. 10.1007/s10593-005-0310-5

By:

Nekrasov, D. D.;
Shurov, S. N.

Publication type:

Article

Regioselective Cycloaddition of Azomethines and Carbodiimides to Aroyl(quinoxalinyl)ketenes.

Published in:

Chemistry of Heterocyclic Compounds, 2004, v. 40, n. 2, p. 247, doi. 10.1023/B:COHC.0000027901.78882.86

By:

Lisovenko, N. Yu.;
Maslivets, A. N.

Publication type:

Article

E-2-Aroylmethylene-3,4-dihydro-2H-1,3-benzoxazin-4-ones - a New Class of Heterocyclic Enamino Ketones.

Published in:

Chemistry of Heterocyclic Compounds, 2003, v. 39, n. 9, p. 1259, doi. 10.1023/B:COHC.0000008278.49199.19

By:

Novikov, A. A.;
Vostrov, E. S.;
Maslivets, A. N.

Publication type:

Article

Regioselective Cycloaddition of Cyclic Ketones to Acyl(imidoyl)ketenes.

Published in:

Chemistry of Heterocyclic Compounds, 2003, v. 39, n. 1, p. 132, doi. 10.1023/A:1023097414711

By:

Lisovenko, N. Yu.;
Maslivets, A. N.;
Alley, Z. G.

Publication type:

Article

4-Hydroxy-2-pyrones: Synthesis, Natural Products, and Application.

Published in:

Organics, 2023, v. 4, n. 4, p. 539, doi. 10.3390/org4040037

By:

Fedin, Vladislav V.;
Obydennov, Dmitrii L.;
Usachev, Sergei A.;
Sosnovskikh, Vyacheslav Y.

Publication type:

Article

Spectroscopy Study Of Mass Spectra For Β -Lactams Mono, Dicarbonyl And Some Five Membered Ring.

Published in:

Journal of College of Education for Pure Science, 2017, v. 7, n. 4, p. 249

By:

Magtoof Altamamemy, M. S.;
Ganaim, Hassan Themer;
Fluffil, Ibrahim Abood

Publication type:

Article

Introduction of the Functional Amino Group at the meso Position of Cy3 and Cy5 Dyes: Synthesis, Stability, Spectra and Photolysis of 4‐Amino‐1‐diazo‐2‐butanone Derivatives**.

Published in:

ChemPhotoChem, 2023, v. 7, n. 1, p. 1, doi. 10.1002/cptc.202200222

By:

Savicheva, Elizaveta A.;
Bossi, Mariano L.;
Belov, Vladimir N.;
Hell, Stefan W.

Publication type:

Article