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Triethylborane-induced radical reactions with gallium- and indium hydrides

✍ Scribed by Kazuaki Takami; Satoshi Mikami; Hideki Yorimitsu; Hiroshi Shinokubo; Koichiro Oshima

Publisher
Elsevier Science
Year
2003
Tongue
French
Weight
226 KB
Volume
59
Category
Article
ISSN
0040-4020

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✦ Synopsis

A gallium hydride reagent, HGaCl 2 , was found to act as a radical mediator. Treatment of alkyl halides with the gallium hydride reagent, generated from gallium trichloride and sodium bis(2-methoxyethoxy)aluminum hydride, provided the corresponding reduced products in excellent yields. Radical cyclization of halo acetals was also successful with not only the stoichiometric gallium reagent but also a catalytic amount of gallium trichloride combined with stoichiometric aluminum hydride as a hydride source. An indium hydride reagent, HInCl 2 , prepared from indium trichloride and diisobutylaluminum hydride also worked as a radical mediator. HInCl 2 could reduce aryl iodides and bromides in the presence of Et 3 B as a radical initiator.

πŸ“œ SIMILAR VOLUMES

ChemInform Abstract: Triethylborane-Indu
ChemInform Abstract: Triethylborane-Induced Radical Reaction with Schwartz Reagent.
✍ Kazuya Fujita; Tomoaki Nakamura; Hideki Yorimitsu; Koichiro Oshima πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons βš– 35 KB πŸ‘ 1 views

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