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Catalyzed cis-trans isomerization of retinals by crude tissue extracts

✍ Scribed by Robert A. Sack; Stanley Seltzer

Book ID
118370033
Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
486 KB
Volume
18
Category
Article
ISSN
0042-6989

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The cis-trans isomerization of 1 by Br2 in CC14 is described. A bridged bromonium cation a to CF, is destabilized resulting-in a carbocation bromide ion pair at the B-carbon capable of freg rotation and loss of bromine to form 2. A CF2 group appears to be more effective in promoting isomerization th