Asymmetric Diels-Alder reactions with 5-menthyloxy-2-(5H)-furanone
摘要:
A new class of chiral dienophiles, 5-alkoxy-2(5H)-furanones, has been developed. Both enantiomers of 5-menthyloxy-2(5H)-furanone are readily available in enantiomerically pure form, starting from furfural and d- or l-menthol. Excellent diastereoselectivities (d.e. greater-than-or-equal-to 99%) are obtained in thermal Diels-Alder reactions with several cyclic and acyclic dienes. The use of silyl dienol ethers has resulted in new routes to enantiomerically pure cyclohexanones in a highly regioselective manner.
Asymmetric Diels-Alder reactions with 5-menthyloxy-2-(5H)-furanone
作者:Johannes C. de Jong、Fré van Bolhuis、Ben L. Feringa
DOI:10.1016/s0957-4166(00)80024-5
日期:1991.1
A new class of chiral dienophiles, 5-alkoxy-2(5H)-furanones, has been developed. Both enantiomers of 5-menthyloxy-2(5H)-furanone are readily available in enantiomerically pure form, starting from furfural and d- or l-menthol. Excellent diastereoselectivities (d.e. greater-than-or-equal-to 99%) are obtained in thermal Diels-Alder reactions with several cyclic and acyclic dienes. The use of silyl dienol ethers has resulted in new routes to enantiomerically pure cyclohexanones in a highly regioselective manner.