An Aluminum Hydride That Functions like a Transition‐Metal Catalyst1. Issue 35 (18th June 2015)

• Record Type: Journal Article
• Authors: Yang, Zhi; Zhong, Mingdong; Ma, Xiaoli; De, Susmita; Anusha, Chakkittakandiyil; Parameswaran, Pattiyil; Roesky, Herbert W.
• Is Part Of: Angewandte Chemie international edition. Volume 54:Issue 35(2015)
• Page Start: 10225
• Page End: 10229
• Publication Date: 2015-06-18
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201503304
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The reaction of [LAlH₂] (L=HC(CMeNAr)₂, Ar=2, 6‐<italic>i</italic>Pr₂C₆H₃) with MeOTf (Tf=SO₂CF₃) resulted in the formation of [LAlH(OTf)] (<bold>1</bold>) in high yield. The triflate substituent in <bold>1</bold> increases the positive charge at the aluminum center, which implies that <bold>1</bold> has a strong Lewis acidic character. The excellent catalytic activity of <bold>1</bold> for the hydroboration of organic compounds with carbonyl groups was investigated. Furthermore, it was shown that <bold>1</bold> effectively initiates the addition reaction of trimethylsilyl cyanide (TMSCN) to both aldehydes and ketones. Quantum mechanical calculations were carried out to explore the reaction mechanism.</p> </abstract>