Reactivity study of a hydroxyl coordinated osmium vinyl complex OsCI2（PPha）2[CH=C（PPha）CHPh（OH）]

We studied the reactivity of an osmium vinyl complex containing a coordinated hydroxyl group OsC12（PPh3）2[CH=C（PPh3）- CHPh（OH）] （1） toward bidentate ligand 1,4-bis（diphenylphosphino）butane （DPPB）, acid ligand （CO）, base （Cs2CO3） and heat. Two osmium vinyl complexes OsC12（dppb）[CH=C（PPh3）CHPh（OH）] （2...

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Published in中国科学：化学英文版 no. 8; pp. 1105 - 1111
Main Author LIU Bin WANG HuiJuan ZENG BiRong CAO XiaoYu XIA HaiPing ZHAO QianYi
Format Journal Article
LanguageEnglish
Published 2013
Subjects
PPHA
三苯基膦
乙烯基
单晶X-射线衍射
反应性
核磁共振光谱
羟基
锇配合物
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Summary:We studied the reactivity of an osmium vinyl complex containing a coordinated hydroxyl group OsC12（PPh3）2[CH=C（PPh3）- CHPh（OH）] （1） toward bidentate ligand 1,4-bis（diphenylphosphino）butane （DPPB）, acid ligand （CO）, base （Cs2CO3） and heat. Two osmium vinyl complexes OsC12（dppb）[CH=C（PPh3）CHPh（OH）] （2） and OsCI2（CO）2（PPh3）[CH=C（PPh3）CHPh（OH）] （3）, as well as two relatively rare phosphonium-containing osmafuran complexes Os（q2-OCOO）（PPha）z[CHC（PPha）CPhO] （4） and OsClz（PPh3）z[CHC（PPh3）CPhO] （5）, were obtained in high yields from these reactions. All products were characterized by NMR spectroscopy, elemental analysis, and their structures were further confirmed by single crystal X-ray diffraction.
Bibliography:We studied the reactivity of an osmium vinyl complex containing a coordinated hydroxyl group OsC12（PPh3）2[CH=C（PPh3）- CHPh（OH）] （1） toward bidentate ligand 1,4-bis（diphenylphosphino）butane （DPPB）, acid ligand （CO）, base （Cs2CO3） and heat. Two osmium vinyl complexes OsC12（dppb）[CH=C（PPh3）CHPh（OH）] （2） and OsCI2（CO）2（PPh3）[CH=C（PPh3）CHPh（OH）] （3）, as well as two relatively rare phosphonium-containing osmafuran complexes Os（q2-OCOO）（PPha）z[CHC（PPha）CPhO] （4） and OsClz（PPh3）z[CHC（PPh3）CPhO] （5）, were obtained in high yields from these reactions. All products were characterized by NMR spectroscopy, elemental analysis, and their structures were further confirmed by single crystal X-ray diffraction.
osmium vinyl complex, osmafuran, aromatic cyclization, ligand substitution, metallaaromatics
LIU Bin, ZHAO QianYi, WANG HuiJuan, ZENG BiRong, CAO XiaoYu ＆ XIA HaiPing College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
11-5839/O6
ISSN:1674-7291
1869-1870