(2S,3R,6S)-6-allyl-6-(but-3-enyl)-2,3-diisopropyl-5-[(R)-N-methyl-S-phenylsulfonimidoyl]-3,6-dihydro-2H-pyran 在
(PCy
3)(H
2IMes)Ru(CHPh) 作用下,
以
二氯甲烷 为溶剂,
反应 16.0h,
以87%的产率得到(2S,3R,6S)-2,3-diisopropyl-5-[(R)-N-methyl-S-phenylsulfonimidoyl]-1-oxaspiro[5.5]undeca-4,8-diene