Organic reactions at high pressure. Michael addition of activated acyclic donors with β,⨿-disubstituted enone acceptors.
作者:William G Dauben、John M Gerdes
DOI:10.1016/s0040-4039(00)94290-4
日期:1983.1
Highpressure, 15 kbar (1.5 GPa), Michaeladditions of doubly activated acyclic donors to sterically hinderedenone acceptors with 1,5-diazabicyclo[4.3.0]non-5-ene in acetonitrile affords Michael adducts in 42–82% yield.
with 2-phenylethyl 2-(acetoxymethyl)acrylate or 2-(acetoxymethyl)-1-phenyl-2-propen-1-one via domino Michael reactions and a Dieckmann condensation or an aldol-type reaction (four-bond formation). This is the first one-pot construction of adamantane derivatives from cyclohexanone derivatives not involving enamines.
Positive deep ultra-violet photoresists which are base-developable comprise a base-soluble polymer and, as a photo- sensitive solubilising agent, a substituted 2-diazocyclohexane--1,3-dione.