SYNTHESIS AND PROPERTIES OF (PI-ALLYL)PALLADIUM FORMATES AS INTERMEDIATES IN PALLADIUM-CATALYZED REDUCTIVE CLEAVAGE OF ALLYLIC ACETATES AND CARBONATES WITH FORMIC-ACID

被引:66
作者
OSHIMA, M
SHIMIZU, I
YAMAMOTO, A
OZAWA, F
机构
[1] WASEDA UNIV,SCH SCI & ENGN,DEPT APPL CHEM,SHINJUKU KU,TOKYO 169,JAPAN
[2] HOKKAIDO UNIV,CATALYSIS RES CTR,KITA KU,SAPPORO,HOKKAIDO 060,JAPAN
关键词
D O I
10.1021/om00051a002
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Neutral (pi-allyl)(tertiary phosphine)palladium formates and ionic (pi-allyl)bis(tertiary phosphine)palladium formates that are regarded as key intermediates in palladium-catalyzed reductive cleavage of allylic acetates and carbonates with formic acid have been prepared and characterized by H-1 and C-13 NMR spectroscopy. From a study of the formation process of these formate intermediates by anion exchange of the acetate anion with formic acid and by establishment of the course of liberation of olefins and CO2 from the formate ligand, the validity of the proposed catalytic cycle has been substantiated.
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页码:1221 / 1223
页数:3
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