THE PRODUCT OF CATALYZED DIBORATION OF BIS(4-METHOXYPHENYL)ETHYNE BY BIS(PINACOLATO-O,O')DIBORON

Authors
CLEGG W SCOTT AJ LESLEY G MARDER TB NORMAN NC
Citation
W. Clegg et al., THE PRODUCT OF CATALYZED DIBORATION OF BIS(4-METHOXYPHENYL)ETHYNE BY BIS(PINACOLATO-O,O')DIBORON, Acta crystallographica. Section C, Crystal structure communications, 52, 1996, pp. 1989-1991
Citations number
9
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
52
Year of publication
1996
Part
8
Pages
1989 - 1991
Database
ISI
SICI code
0108-2701(1996)52:<1989:TPOCDO>2.0.ZU;2-Q
Abstract
The title compound, dioxaborolan-2-yl)-1,2-bis(4-methoxyphenyl)ethene, C28H38B2O6, has a cis arrangement of two boronate ester substituents and two 4-methoxyphenyl substituents on its central C=C double bond, w hich shows a slight twist of ca 8.5 degrees. All four substituents are rotated considerably out of the alkene plane to reduce steric hindran ce. The BO2C2 five-membered rings have a twist conformation.