Aromatic (meth)acrylate compound having an alpha-hydroxy, photosensitive polymer, resist compositions, and associated methods
申请人:Choi Sang-Jun
公开号:US20090155719A1
公开(公告)日:2009-06-18
An aromatic (meth)acrylate compound having an α-hydroxy, the aromatic (meth)acrylate compound being represented by the following Formula 1:
In Formula 1, R
1
is hydrogen or a methyl, R
2
is hydrogen, a substituted or unsubstituted alkyl, or a substituted or unsubstituted aryl, AR is a substituted or unsubstituted phenyl ring, or a substituted or unsubstituted aryl having from two to three fused aromatic rings, and carbon C
AR
is bonded directly to an aromatic ring of AR, R and R′ are independently hydrogen or an alkyl, and X is an integer ranging from 1 to 6.
Tandem Catalysis by Lipase in a Vinyl Acetate-Mediated Cross-Aldol Reaction
作者:Manjeet Kumar、Bhahwal A. Shah、Subhash C. Taneja
DOI:10.1002/adsc.201000980
日期:2011.5
The lipase Novozym435 (0.6% w/w) was used in tandem with organocatalysts in a first vinyl/isopropenyl acetate‐mediated aldol reaction. The reaction was facilitated through the lipase‐catalyzed in situ generation of acetaldehyde/acetone. The important features of the present methodology include the mild and facile reaction conditions, regenerability of the lipase, comparatively high yields and minimal