An infrared study of the stereochemistry attending the Claisen rearrangement of cis- and trans-alpha,gamma-dimethylallyl and two other related vinyl ethers has shown that the reaction produces essentially only trans substituted allylacetaidehydes. The double bond in the o-Claisen rearrangement product of trans-alpha, gamma-dimethylallyl phenyl ether has also been demonstrated by infrared absorption to be predominantly trans. The transition state geometry of the Claisen rearrangement implied by these findings is discussed.
VOGEL, DENNIS E.;BUCHI, GEORGE H., ORG. SYNTH.: ANNU. PUBL. SATISFACT. METH. PREP. ORG. CHEM. VOL. 66, NEW Y+
作者:VOGEL, DENNIS E.、BUCHI, GEORGE H.
DOI:——
日期:——
BUECHI, G.;VOGEL, D. E., J. ORG. CHEM., 1983, 48, N 26, 5406-5408
作者:BUECHI, G.、VOGEL, D. E.
DOI:——
日期:——
Preparation and rearrangement of trans-3-(allyloxy)acrylic acids: a Claisen sequence that avoids mercury catalysis
作者:George Buechi、Dennis E. Vogel
DOI:10.1021/jo00174a064
日期:1983.12
The Steric Course of the Claisen Rearrangement
作者:Albert W. Burgstahler
DOI:10.1021/ja01502a057
日期:1960.9
An infrared study of the stereochemistry attending the Claisen rearrangement of cis- and trans-alpha,gamma-dimethylallyl and two other related vinyl ethers has shown that the reaction produces essentially only trans substituted allylacetaidehydes. The double bond in the o-Claisen rearrangement product of trans-alpha, gamma-dimethylallyl phenyl ether has also been demonstrated by infrared absorption to be predominantly trans. The transition state geometry of the Claisen rearrangement implied by these findings is discussed.