the direct aldol addition with high degrees of regioselectivity at the sterically more encumbered α-side of unsymmetrical ketones. The formation of quaternary stereocenters is described. Oxygen-containing ene components can also be used as starting material in these reactions. When used with aliphaticaldehydes, acetals 18 or acetals of aldol adducts 20 were observed. As few as 0.2 mol % loadings with
Cornubert et al., Bulletin de la Societe Chimique de France, 1938, vol. <5> 5, p. 534,535, 536, 540
作者:Cornubert et al.
DOI:——
日期:——
A Convenient Synthesis of 2-Chlorophenyl Methylidene-5,5-dimethylcyclopentanone, a Key Intermediate for a Potent Fungicide against <i>Botrytis cinera</i>