Improved Synthesis of γ-Lactones from Cyclopropyl Cyanoesters
作者:Nandini C. Patel、Jacob B. Schwarz、Khondaker Islam、Whitney Miller、Tuan P. Tran、Yunjing Wei
DOI:10.1080/00397911.2010.501472
日期:2011.8
[image omitted] Cyclopropyl cyanoesters 2 were reliably converted to -lactones 4 on treatment with aqueous sulfuric acid. The cyanoesters could be easily prepared from ketones or aldehydes in two steps, making this process particularly attractive from an efficiency standpoint.
SARGSYAN, M. S.;PETROSYAN, K. A.;GEVORKYAN, A. A., ARM. XIM. ZH., 43,(1990) N, S. 132-135
作者:SARGSYAN, M. S.、PETROSYAN, K. A.、GEVORKYAN, A. A.
DOI:——
日期:——
Compound, Polymer and Optical Component
申请人:Abe Hiroshi
公开号:US20080074753A1
公开(公告)日:2008-03-27
The present invention relates to a polymer containing a structural unit based on a compound (A-a) represented by the following formula (1-a):
(wherein R represents a hydrogen atom or CH
3
, X represents —CH
2
—, —O—, or —SO
2
—, l represents an integer of 1 or 2, and m1 and n1 each represents an integer of 0 or more, provided that the sum of m1 and n1 is 2), or formula (3):
(wherein r represents 1 or 2, m2 represents an integer of 0 to 2, and n2 represents an integer of 1 to 3 provided that the sum of m2 and n2 is 2 or 3, a hydrogen atom in —CH
2
— being optionally substituted by another functional group). The polymer may contain a structural unit based on a vinyl monomer (B).