Organophosphorus Compounds. Part 144: 1 A Novel Approach to 1,3-Oxaphospholes from Phosphaalkynes and Isomünchnones
作者:Sven G. Ruf、Uwe Bergsträßer、Manfred Regitz
DOI:10.1016/s0040-4020(99)00773-5
日期:2000.1
process to furnish the 1,3-oxaphospholes 14. In contrast to other cycloadditions to isomünchnones, the bicyclic intermediate 13 cannot be detected in these reactions. It is not necessary to use isolated isomünchnones 12 for the synthesis of the 1,3-oxaphospholes. The reaction sequence is also successful by use of the diazocarbonyl compounds 11 and in situ generation of the isomünchnones therefrom.
磷炔5在区域特异性过程中与异麦香酮12反应,生成1,3-氧杂磷14。与异麦草酮的其他环加成反应相反,在这些反应中不能检测到双环中间体13。不必使用分离的异麦草酮12来合成1,3-氧杂磷腈。通过使用重氮羰基化合物11并从中原位生成异氰酸酯,反应序列也是成功的。