Aldol-Type Chirons from Asymmetric Hydrogenations of Trisubstituted Alkenes
作者:Jian Zhao、Kevin Burgess
DOI:10.1021/ol900308w
日期:2009.5.21
Catalyst control dominates in the asymmetric hydrogenations of largely unfunctionalized trisubstituted alkenes formed from lactic acid and glyceraldehyde, affording syn- and ant aldol products of the type shown above.
Martin, David Diez; Feliciano, Sonia G. San; Marcos, Isidro S., Synthesis, 2001, # 7, p. 1069 - 1075
作者:Martin, David Diez、Feliciano, Sonia G. San、Marcos, Isidro S.、Basabe, Pilar、Garrido, Narciso M.、Urones, Julio G.
DOI:——
日期:——
Synthesis of γ-lactone derivatives as a key intermediate for the spiroketal fragment in calyculin A
A simple and safe route to the D-xylone-1,4-lactone derivative 3, a key intermediate for the synthesis of the spiroketal fragment in calyculin A (1) has been explored without the use of hazardous diazomethane on a large scale.