backbone has been elaborated and executed for several representative enantiomerically pure ligands. Thus,(1R,3S,4S)-1,4-bis[(diphenylphosphanyl)methyl]spiro[2.2]pentane [(1R,3S,4S)-24·(BH3)2], [(1R,3R,4S)-4-(diphenylphosphanyl)methylspiro[2.2]pentan-1-yl]diphenylphosphane [(1R,3R,4S)-27·(BH3)2], [(1R,3R,4S,5R)-5-(diphenylphosphanyl)methyldispiro[2.0.2.1]heptan-1-yl]diphenylphosphane [(1R,3R,4S,5R)-30·(BH3)2]
一种用于合成具有刚性三角骨架的轴向和螺旋手性双齿二
膦配体的新原创策略已被阐述并用于几种代表性的对映体纯
配体。因此,(1R,3S,4S)-1,4-双[(
二苯基膦酰基)甲基]螺[2.2]
戊烷[(1R,3S,4S)-24·(
BH3)2],[(1R,3R,4S) )-4-(
二苯基膦基)甲基螺[2.2]戊-1-基]
二苯基膦[(1R,3R,4S)-27·( )2], [(1R,3R,4S,5R)-5-(
二苯基膦基)甲基二螺[2.0.2.1]
庚烷-1-基]
二苯基膦[(1R,3R,4S,5R)-30·( )2], (1S,3S,4S)-1,4-双(
二苯基膦基)
螺戊烷[(1R,3S,4S)-35·( )2], (1S,3S,4S)-1,4-双(
二苯基膦酰基)
螺戊烷[(1S,3S,4S)-35·( )2] , (1S,3S,4S)-1,4-双(
二苯基膦酰基)
螺戊烷[(1R,3R,4S)-35·( )2],和(1R