Synthesis of Enantiopureα-Alkoxy-α-Trifluoromethyl Aldehydes and Carboxylic Acids from Trifluoromethyl Ketones
作者:Rosario Fernández、Eloísa Martín-Zamora、Carmen Pareja、Juan Vázquez、Elena Díez、Angeles Monge、José M. Lassaletta
DOI:10.1002/(sici)1521-3773(19981231)37:24<3428::aid-anie3428>3.0.co;2-p
日期:1998.12.31
Formaldehyde dialkylhydrazones behave as neutral d1 synthons in their uncatalyzed reaction with trifluoromethyl ketones (see reaction). Both racemic and optically pure 1,2-adducts were obtained in good yields. Efficient deprotection of the hydrazone moiety afforded interesting fluorinated quaternary compounds such as 1 and 2.