AKGUEN, E.;PINDUR, U., CHEM.-ZTG, 1983, 107, N 7-8, 236-237
作者:AKGUEN, E.、PINDUR, U.
DOI:——
日期:——
Efficient One-Step Aldol-Type Reaction of Ketones with Acetals and Ketals Mediated by Dibutylboron Triflate/Diisopropylethyl Amine
作者:Lian-Sheng Li、Sanjib Das、Subhash C. Sinha
DOI:10.1021/ol030108u
日期:2004.1.1
one-step Mukaiyama aldol-type reaction has been developed for the synthesis of beta-alkoxy carbonyl compounds starting from ketones and acetals/ketals. The reaction is mediated by a combination of Bu(2)BOTf and i-Pr(2)NEt affording the products in high yields. Formation of the two possible diastereoisomers of the beta-alkoxy ketones from the chiral acetals shows that the condensation takes place by an