Oxidation of alpha- and beta-pinene catalyzed by Mn-III(Salen)Cl center dot H2O

被引：22

作者：

Gomes, MDT ^{[1
]}

Antunes, OAC ^{[1
]}

机构：

[1] UNIV FED RIO DE JANEIRO,INST QUIM,BR-21945970 RIO JANEIRO,RJ,BRAZIL

来源：

CATALYSIS LETTERS | 1996年 / 42卷 / 3-4期

关键词：

alpha-pinene; beta-pinene; Mn-III(Salen)Cl center dot H2O; iodosobenzene; catalytic oxidation; cytochrome P-450;

D O I：

10.1007/BF00810691

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The cationic complex Mn-III(Salen) is a very effective catalyst for the oxidation of both alpha- and beta-pinene. The higher selectivity towards epoxide formation supports the rebound oxygen mechanism. A turnover of 40 was obtained for both compounds after 16 h of reaction with a molar ratio 1 :0.01 :1 (feedstock:catalyst : iodosobenzene) and conversions between 50 and 60% were observed. A very high selectivity (55%) was determined for epoxide formation from alpha-pinene. The good selectivity observed for myrtanal isomers (6.5 and 23.2%) from beta-pinene is related to the prior formation of the 1,2-epoxides.

引用

页码：213 / 215

页数：3

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