Application of the chemo- and enantioselective cyclopropanation of polyenes to the total synthesis of (+)-bicyclohumulenone
摘要:
The chemo- and enantioselective cyclopropanation of a monoprotected bis(allylic alcohol) using a chiral dioxaborolane-derived ligand and Zn(CH2I)(2) was used as a key step in the total synthesis of (+)-bicyclohumulenone. The synthesis of this important perfume component was efficiently accomplished in 16 steps from diethyl 3,3-dimethylglutarate in 9% overall yield. (C) 1997 Elsevier Science Ltd.
Application of the chemo- and enantioselective cyclopropanation of polyenes to the total synthesis of (+)-bicyclohumulenone
摘要:
The chemo- and enantioselective cyclopropanation of a monoprotected bis(allylic alcohol) using a chiral dioxaborolane-derived ligand and Zn(CH2I)(2) was used as a key step in the total synthesis of (+)-bicyclohumulenone. The synthesis of this important perfume component was efficiently accomplished in 16 steps from diethyl 3,3-dimethylglutarate in 9% overall yield. (C) 1997 Elsevier Science Ltd.