Total synthesis of prolycopene, a novel 7,9,7′,9′-tetra-cis(Z) carotenoid and main pigment of the tangerine tomato Lycopersicon esculentum
作者:Gerald Pattenden、David C. Robson
DOI:10.1016/j.tet.2006.05.023
日期:2006.7
A totalsynthesis of the 7,9,7′,9′-tetra-cis(Z) isomer of lycopene, also known as ‘prolycopene’, produced as the major carotenoid pigment in fruits of the tangerine tomato Lycopersicon esculentum (‘Tangella’) is described. The synthesis is based on: (i) a modified Sonogashira coupling reaction between the E-alkenyl bromide 6 and the Z-enynol 7, leading to the 2Z-trienynol 8, followed by (ii) a Wittig