CEREFICE S. A.; FIELDS E. K., J. ORG. CHEM. <JOCE-AH>, 1976, 41, NO 2, 355-361
作者:CEREFICE S. A.、 FIELDS E. K.
DOI:——
日期:——
Organometallic compounds in organic synthesis. Part 13. Stereoselectivity of complexation of cyclohexadiene esters
作者:B. M. Ratnayake Bandara、Arthur J. Birch、Warwick D. Raverty
DOI:10.1039/p19820001755
日期:——
Complexation of cyclohexadienes with Fe(CO)3 as the entering group are subject to classical steric hindrance by alkyl groups, but CO2R and related groups introduce a competing factor because they favour sterically the entering group, probably through an intermediate complex. Increase of π-electron availability in the initial 1,4-diene by the attachment of OMe reduces this influence, probably because