SPIRAL HEXATRIENES - THE HINDERED CIS ISOMER OF MINI-CAROTENE-3 AND HEXAKIS-(2,2',4,4',6,6'-TRIFLUOROMETHYL)STILBENE

Authors
CHEN RL COLMENARES LU THIEL JR LIU RSH
Citation
Rl. Chen et al., SPIRAL HEXATRIENES - THE HINDERED CIS ISOMER OF MINI-CAROTENE-3 AND HEXAKIS-(2,2',4,4',6,6'-TRIFLUOROMETHYL)STILBENE, Tetrahedron letters, 35(39), 1994, pp. 7177-7180
Citations number
10
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
35
Issue
39
Year of publication
1994
Pages
7177 - 7180
Database
ISI
SICI code
0040-4039(1994)35:39<7177:SH-THC>2.0.ZU;2-1
Abstract
Steric crowding in the cis isomer of ''Mini-3'', a chain shortened tri ene analog of beta-carotene, and hexakis-(2,2',4,4',6,6'-trifluorometh yl)stilbene forces the polyene chromophores to adopt a spiral conforma tion. Some of the associated unusual spectroscopic properties (W-VIS a nd NMR) of these compounds and a rare 1,7-H shift process are describe d.