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- Title
PORPHYRINS WITH FORMYL GROUPS II. PREPARATION OF CHLOROCRUOROPORPHYRIN AND DIFORMYLDEUTEROPORPHYRIN.
- Authors
Lemberg, R.; Parker, J.
- Abstract
Oxidation of protoporphyrin dimethyl ester with permanganate in very dilute acetone solution gives a well crystallized equimolar mixture of chlorocruoroporphyrin and diformyldeuteroporphyrin esters with a 15 p.c. yield. This can be separated by alumina chromatography and the chlorocruoroporphyrin ester thus obtained has the same properties as chlorocruoroporphyrin ester from natural chlorocruorin. No definite evidence could be obtained for the presence of an isochlorocruoroporphyrin in these preparations, but it appears likely that this was present in the impure preparations. No fraction could be obtained, however, which had the properties of the verdNO2 porphyrin ester of Alslev and Kiese, provisionally identified by these authors with isochlorocruoroporphyrin ester.
- Subjects
PORPHYRINS; OXIDATION; ESTERS; CHROMATOGRAPHIC analysis; CHEMICAL reactions
- Publication
Australian Journal of Experimental Biology & Medical Science, 1952, Vol 30, Issue 2, p163
- ISSN
0004-945X
- Publication type
Article
- DOI
10.1038/icb.1952.15