Homogeneous Catalysis III. Hydrosilylation Of a, ß-Unsaturated Aldehydes; Regiospecific Reduction Of C=0 Using Ni0 Catalysts

UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
Terence "Terry" Nile, Professor (Creator)
The University of North Carolina at Greensboro (UNCG )
Web Site: http://library.uncg.edu/

Abstract: The addition of trialkoxysilanes across the carbonyl bond in crotonaldehyde has been demonstrated for a variety of nickel(0) complexes. The carbon—carbon double bond is left intact. This differs from catalysts used previously, such as chloroplatinic acid or Wilkinson's compound, where 1,4-addition is reported for simple a, ß-unsaturated aldehydes. The Ziegler system, Ni(acac)2-Et3Al, proved ineffective as a catalyst, due to competing polymerisation of the crotonaldehyde. The 1,4-addition of trialkoxysilanes to crotonaldehyde, catalysed by Wilkinson's compound, has been confirmed; the new cis- and trans-but-1-enoxytriethoxysilanes have been isolated and identified.

Additional Information

J. Organometallic Chem., 102(4), 543 (1975).
Language: English
Date: 1975
crotonaldehyde, Wilkinson's compound, Ziegler system

Email this document to