Cis-trãns Isomeric Carotenoids Vitamins A and Arylpolyenes

Front Matter....Pages I-XIV
Front Matter....Pages 1-1
Carotenoids: Introduction....Pages 3-10
Number and Types of cis Carotenoids. Steric Hindrance....Pages 11-17
Some Properties of cis Carotenoids....Pages 18-24
 Cis-trans Isomerism and UV Spectra....Pages 25-45
Preparation of cis Carotenoids by Direct Rearrangement of the All- trans Form....Pages 46-57
Preparation of cis Carotenoids by Total Synthesis....Pages 58-62
Naturally Occurring cis and Poly cis Carotenoids....Pages 63-75
Some General Remarks on Configurational Assignments....Pages 76-79
Configurational Assignments in Certain Stereoisomeric Sets....Pages 80-106
Lower-molecular Weight Carotenoid-carboxylic Acids: Bixin and Crocetin....Pages 107-117
 Cis-trans Isomerism and Provitamin A Effect of Carotenoids....Pages 118-120
Vitamins A and Retinenes....Pages 121-145
Front Matter....Pages 147-149
 I -Monoaryl-polyenes....Pages 150-157
 α , ω -Diphenylpolyenes and Related Compounds....Pages 158-188
Cumulenes with Aromatic Terminal Groups....Pages 189-192
Polyene Azines....Pages 193-201
Bibliography....Pages 202-226
Back Matter....Pages 227-251