Theses and Dissertations

ORCID

https://orcid.org/0000-0003-4320-636X

Advisor

Hernandez, Miguel Munoz

Committee Member

Emerson, Joseph P.

Committee Member

Montiel-Palma, Virginia

Date of Degree

8-13-2024

Original embargo terms

Visible MSU Only 2 Years

Document Type

Graduate Thesis - Campus Access Only

Major

Chemistry

Degree Name

Master of Science (M.S.)

College

College of Arts and Sciences

Department

Department of Chemistry

Abstract

The development of non-noble metal catalysts has become a prominent topic in the field of Organometallic Chemistry research. Aldehydes and ketones have been catalytically reduced through hydroboration employing unsupported bimetallic Li-M complexes, where M is a group 13 metal (Al, Ga or, In). Herein, we disclose our studies on the supported Li-M complex [Li{(tert-Bu)M(o-C6H4(NMe2))3}],where M=Ga, which catalyzes the hydroboration of benzophenone at room temperature using HBpin. A tris-chelate of Gallium complex [Ga(o-C6H4(NMe2))3] was synthesized as precursors to produce the Li-Ga complex [Li{(tert-Bu)Ga(o-C6H4(NMe2))3}] in excellent yield by reacting it with tert-Butyl lithium in diethyl ether [yield (93%)].The precursor and complexes were characterized by ATR-IR, 1H-NMR,7Li-NMR and 13C-NMR spectroscopic methods and single crystal X-ray crystallography. The complex [Li{(tert-Bu)Ga(o-C6H4(NMe2))3}] exhibited strong activities when employed as catalyst for the hydroboration of benzophenone. A comparative study on the hydroboration reactions of benzophenone catalyzed by [Li{(tert-Bu)Ga(o-C6H4(NMe2))3}] under various catalytic loading conditions has been discussed herein.

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