Carbocyclic ring expansion reactions via radical chain processes
作者:Jack E. Baldwin、Robert M. Adlington、Jeremy Robertson
DOI:10.1039/c39880001404
日期:——
Free radical mediated ringexpansion of cis- and trans-α-substituted-β-stannylcyclohexanones provides efficient routes to cis- and trans-cyclononenones and cyclodecenones; the cis-/trans-geometry of the precursor controls the alkene geometry of the ring-expanded product.
It has been found that (E)-5-cyclononen-1-one (2a) exhibits marginal planar chirality owing to an insufficient topological constraint, whereas the enolates 3 derived from 2a show robust planar chirality. Enantioenriched enolates are easily prepared by enzymatic hydrolysis, and they show an ability to serve as chiral nucleophiles.
Carbocyclic ring expansion reactiuon VIA radical chain processes
作者:Jack E. Baldwin、Robert M. Adlington、Jeremy Robertson
DOI:10.1016/0040-4020(89)80003-1
日期:1989.1
Wharton fragmentation of monosulfonates of methylhexahydroindandiols
作者:Drury Caine、Candice J. McCloskey、Donald Van Derveer
DOI:10.1021/jo00202a007
日期:1985.1
BALDWIN, JACK E.;ADLINGTON, ROBERT M.;ROBERTSON, JEREMY, TETRAHEDRON, 45,(1989) N, C. 909-922
作者:BALDWIN, JACK E.、ADLINGTON, ROBERT M.、ROBERTSON, JEREMY