专利号:US-5142073-A 优先权日:1991-04-30 标 题:Synthesis of molybdenum and tungsten complexes 发明人:SCHROCK RICHARD R; FOX HAROLD H; GOODALL BRIAN L 权利人:MASSACHUSETTS INST TECHNOLOGY 摘要:Molybdenum and tungsten complexes useful as precursors for catalysts useful in the metathesis of olefins are disclosed. New compounds have the formula: M(R 1 ) 2 (NR 2 ) 2 (R 3 ) x .
专利号:WO-9219631-A1 优先权日:1991-04-30 标题 :Synthesis of molybdenum and tungsten complexes
专利号:EP-0537335-A1 优先权日:1991-04-30 标题:Synthesis of molybdenum and tungsten complexes