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Formation of antimony–sulfur double-bond compounds and their trapping with nitrile oxides

✍ Scribed by Norihiro Tokitoh; Yoshimitsu Arai; Takahiro Sasamori; Nobuhiro Takeda; Renji Okazaki

Publisher: John Wiley and Sons
Year: 2001
Tongue: English
Weight: 140 KB
Volume: 12
Category: Article
ISSN: 1042-7163
DOI: 10.1002/hc.1039

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✦ Synopsis

Abstract

The reaction of a highly crowded dihydrostibine [2,4,6‐tris[bis(trimethylsilyl)methyl]phenyl‐SbH~2~ (TbtSbH~2~) (1)] with elemental sulfur in the presence of nitrile oxides resulted in the formation of [2 + 3] cycloaddition reaction products of a thioxostibine [TbtSb=S (6)] and a dithioxostiborane [TbtSb(S)=S (7)], which are among a novel class of antimony–sulfur double‐bond compounds. The structures of the [2 + 3] cycloadducts of dithioxostiborane 7 with nitrile oxides were determined by X‐ray structural analysis. Desulfurization of highly crowded antimony‐containing cyclic polysulfides [TbtSbS~x~ (4: x = 5; 5: x = 7)] with phosphine reagents also resulted in the formation of 6 and 7. © 2001 John Wiley & Sons, Inc. Heteroatom Chem 12:244–249, 2001

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