PD-C ASSISTED SYNTHESIS OF CIS-2,4-DISUBSTITUTED GAMMA-BUTYROLACTONESAND THEIR PROPERTIES FOR FERROELECTRIC LIQUID-CRYSTALS

Authors
SAKAGUCHI K KAWAMURA Y SAITO S OHFUNE Y
Citation
K. Sakaguchi et al., PD-C ASSISTED SYNTHESIS OF CIS-2,4-DISUBSTITUTED GAMMA-BUTYROLACTONESAND THEIR PROPERTIES FOR FERROELECTRIC LIQUID-CRYSTALS, Synlett, (5), 1997, pp. 624
Citations number
11
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Synlett → ACNP
ISSN journal
09365214
Issue
5
Year of publication
1997
Database
ISI
SICI code
0936-5214(1997):5<624:PASOCG>2.0.ZU;2-W
Abstract
Cis isomers of optically active 2,4-disubstituted gamma-butyrolactone, 1 - 4, as chiral dopants for ferroelectric Liquid crystals (FLCs) are synthesized in a stereoselective manner via a Pd-C catalyzed hydrogen ation of the endo CC double bond isomers of (4R)-2,4-disubstituted gam ma-butyrolactone, 23, 19, 20, and 21, respectively. The synthesis invo lved a novel exo to endo isomerization of the CC double bond effected by Pd-C in the absence of hydrogen.