Synthesis of dienynes from alkenes and diynes using ruthenium-mediated ring-closing metathesis
作者:Willem A.L. van Otterlo、E. Lindani Ngidi、Charles B. de Koning、Manuel A. Fernandes
DOI:10.1016/j.tetlet.2003.11.063
日期:2004.1
This communication describes a novel ruthenium-mediated transformation, which converts molecules containing alkenes and conjugated diynes such as 1-allyl-2-[6-(2-allylphenoxy)-2,4-hexadiynyl]oxy}benzene into dienynes such as 3-[2-(2,5-dihydro-1-benzoxepin-3-yl)-1-methylene-2-propenyl]-2,5-dihydro-1-benzoxepine instead of the expected product 3-[2-(2,5-dihydro-1-benzoxepin-3-yl)ethynyl]-2,5-dihydro-1-benzoxepine
该交流描述了一种新型的钌介导的转化,该转化将含有烯烃和共轭二炔的分子(例如1-烯丙基-2-[[6-(2-烯丙基苯氧基)-2,4-己二炔基]氧基}苯)转化为二烯(例如3) -[2-(2,5-二氢-1-苯并氧杂-3-基)-1-亚甲基-2-丙烯基] -2,5-二氢-1-苯并二氢吡啶代替预期产物3- [2-(2 ,5-二氢-1-苯并氧杂-3-基)乙炔基] -2,5-二氢-1-苯并氧杂松。