Syntheses with sulfones XLVII : stereoselective access to 1,3- and 1,4-dienes through hydrogenolysis of benzenesulfonyldienes. Application to pheromone synthesis
作者:T. Cuvigny、C.Herve Du Penhoat、M. Julia
DOI:10.1016/s0040-4020(01)90023-7
日期:1987.1
The stereospecific reduction of EE 2-benzenesulfonyl-1,3-dienes to ZE 1,3-dienes with Grignard reagents under transition metal catalysis ie described, Hydrogenolysis of the sulfonyl moiety of 2-benzenesulfonyl-1,4-dienes to ZE 1,4-dienes with sodium dithionite ie reported. These techniques have been applied to the stereoselective synthesis of (7E, 9Z) dodecadienyl acetate 3d, (9Z, 11E)tetradecadienyl
在过渡金属催化下,用格氏试剂将EE 2-苯磺酰基-1,3-二烯立体定向还原为ZE 1,3-二烯,即描述为2-苯磺酰基-1,4-二烯的磺酰基部分加氢水解为ZE 1,据报道有4-二烯与连二亚硫酸钠。这些技术已经应用于(7E,9Z)乙酸十二碳二烯基3d,(9Z,11E)乙酸十四碳二烯基3e和(9Z,12E)乙酸四癸二烯基6b的立体选择性合成。