Reactions of a Tungsten-Germylyne Complex with α, β-Unsaturated Ketones : Complete Cleavage of the W=Ge Bond and Formation of Two Tvnes of η^3-Germoxyallyl Tungsten Complexes
Reactions of a Tungsten-Germylyne Complex with α, β-Unsaturated Ketones : Complete Cleavage of the W=Ge Bond and Formation of Two Tvnes of η^3-Germoxyallyl Tungsten Complexes
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钨-锗炔配合物与 α, β-不饱和酮的反应：W=Ge 键的完全断裂并形成两种 η^3-Germoxyallyl 钨配合物
DOI：
10.1021/ja4109853
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发表时间：
2014
影响因子：
15
通讯作者：
Hiromi Tobita
中科院分区：
文献类型：
--
作者：
Tetsuya Fukuda;Hisako Hashimoto;Hiromi Tobita
Germylyne配合物Cp*(CO)2WGe{C(SiMe3)3}(1)与两分子RC(O)CHCH2（R = Me, Et）反应生成η - 3-烯丙基配合物，其中氧合环戊烯骨架通过氧原子与η - 3-烯丙基配体结合。在与α-Me取代的MeC(O)C（Me）CH2反应时，1只与一个底物分子反应生成另一种类型的η - 3烯丙基配合物，其中五元氧合环戊烯基环以η - 3方式配位到W中心。这两种反应都导致了WGe三键的完全断裂。
Germylyne complex Cp*(CO)2WGe{C(SiMe3)3} (1) reacted with two molecules of RC(O)CHCH2(R = Me, Et) to give η3-allyl complexes, in which an oxagermacyclopentene framework was bound to an η3-allyl ligand through an oxygen atom. In the reaction with α-Me-substituted MeC(O)C(Me)CH2,1reacted with only one molecule of the substrate to give another type of η3-allyl complex, in which a five-membered oxagermacyclopentenyl ring was coordinated to the W center in an η3fashion. Both reactions resulted in unprecedented complete cleavage of a WGe triple bond.