Chemistry letters

A New Maturity Indicator of Sedimentary Organic Matter Based on Thermal Fission of Allylic Bond in Porphyrins.

S Nomoto, M Kozono, H Mita, A Shimoyama

Index: Nomoto, Shinya; Kozono, Masaki; Mita, Hajime; Shimoyama, Akira Chemistry Letters, 2001 , # 11 p. 1174 - 1175

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Citation Number: 6

Abstract

A 3-ethyl-4-methylpyrrole unit in etioporphyrin was shown to be converted to a 3, 4- dimethylpyrrole unit by the action of heat, which was proved to be catalyzed by Na- montmorillonite. Time courses of the reaction could be followed by analyzing 2-ethyl-3- methyl-and 2, 3-dimethylmaleimide after chromic acid oxidation of the porphyrin. The ratio of these maleimides was proposed as a new maturity indicator for sedimentary organic ...

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