Coordination Chemistry of Perhalogenated Cyclopentadienes and Alkynes, XXXII [1]. Hydrolysis of Cymantrenyl-chlorosilanes [C5X5-n(SiMe2Cl)n]Mn(CO)3 (n ≥ 3) and Formation of Cyclopentadienyl-annelated 1,2,5-Oxadisiloles

Author:

Sünkel Karlheinz1,Hofmann Julian1,Schubert Susanna1

Affiliation:

1. Ludwig-Maximilians-Universität München, Department of Chemistry, Butenandtstraße 9, 81377 München, Germany

Abstract

Abstract When cymantrenyl-chlorosilanes [C5X5-n(SiMe2Cl)n]Mn(CO)3 (X=H: n=4; X=Br: n= 3 - 5; 1a-d) come in contact with moist solvents, hydrolysis of two vicinal SiMe2Cl groups occurs with condensation to give 1,2,5-oxadisiloles. With n=3, only one oxadisilole ring is formed, while with n=4 or 5 the formation of one and=or two oxadisiloles is observed. Similar reactions occur, when 1a-d are treated with MeMgCl or MeOH. The molecular structures of two products, [C5Br2(SiMe2Cl)(Si2Me4O)]Mn(CO)3 and [C5(SiMe2OMe)(Si2Me4O)2]Mn(CO)3, are reported.

Publisher

Walter de Gruyter GmbH

Subject

General Chemistry

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1. Cyclic and Non-Cyclic Pi Complexes of Manganese;Reference Module in Chemistry, Molecular Sciences and Chemical Engineering;2021

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