An Efficient Synthesis of Optically Active 4-Benzyloxy-3-hydoroxy-1-butyne and Its Cross-Coupling Reaction
摘要:
An efficient procedure for the synthesis of optically active 4-benzyloxy-3-hydroxy-1-butyne (12: R = H) has been established starting with optically active tartrate ester. Cross-coupling reaction of the resulted acetylene (12: R = H) with some aromatic halides (13a approximately h) and transformation of the arylacetylenes (14a approximate h), thus obtained, into the allylic amine derivatives (17a approximate h) have also been examined via the allylic alcohol intermediates (15 a approximately h) by sequential stereoselective reduction and [3,3] sigmatropic rearrangement.
An Efficient Synthesis of Optically Active 4-Benzyloxy-3-hydoroxy-1-butyne and Its Cross-Coupling Reaction
摘要:
An efficient procedure for the synthesis of optically active 4-benzyloxy-3-hydroxy-1-butyne (12: R = H) has been established starting with optically active tartrate ester. Cross-coupling reaction of the resulted acetylene (12: R = H) with some aromatic halides (13a approximately h) and transformation of the arylacetylenes (14a approximate h), thus obtained, into the allylic amine derivatives (17a approximate h) have also been examined via the allylic alcohol intermediates (15 a approximately h) by sequential stereoselective reduction and [3,3] sigmatropic rearrangement.