Carbanion-accelerated Claisen rearrangements. 4. Asymmetric induction via 1,3,2-oxazaphosphorinanes
作者:Scott E. Denmark、John E. Marlin
DOI:10.1021/jo00235a019
日期:1987.12
DENMARK, SCOTT E.;MARLIN, JOHN E., J. ORG. CHEM., 52,(1987) N 26, 5742-5745
作者:DENMARK, SCOTT E.、MARLIN, JOHN E.
DOI:——
日期:——
Carbanion-Accelerated Claisen Rearrangements: Asymmetric Induction with Chiral Phosphorus-Stabilized Anions
作者:Scott E. Denmark、John E. Marlin、G. Rajendra
DOI:10.1021/jo301919e
日期:2013.1.4
at room temperature in high yield, and the rearrangements are highly site- and stereoselective. The first examples of asymmetricinduction in the Claisen rearrangement with chiral, phosphorus, anion-stabilizing groups are described. The observed asymmetricinduction is highly dependent on the structure of the auxiliary and the metal counterion involved. Both internal and relative diastereoselectivity