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US 4,376,217 AGranted
Cobalt alkylnitroso complexes and methods therewith
AssigneeThe Regents of the University of California
InventorsRobert G. Bergman, Paul N. Becker, Mary A. White
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Abstract
This invention provides a general method for the conversion of alkenes to primary vicinal diamines by use of a cobalt alkylnitroso complex and reduction with lithium aluminum hydride. A preferred species has the structure ##STR1##
Claims9
A method for preparing a diamine compound having primary adjacent amino groups comprising the steps of:
- providing a reagent of the structure ##STR20## wherein R.sub.1 is phenyl, hydrogen or alkyl, R.sub.2 is phenyl, hydrogen or alkyl, R.sub.3 is phenyl, hydrogen or alkyl and R.sub.4 is phenyl, hydrogen or alkyl;
- and,
- contacting said reagent with LiAlH.sub.4 to form said diamine compound as a reaction product of said reagent with said LiAlH.sub.4.
A method for diaminating a compound having a carbon-carbon double bond to prepare a diamine product compound, comprising the steps of:
- admixing a reaction mixture consisting essentially of two reactants, one of said two reactants being a reagent of the structure ##STR21## the other of said two reactants being said compound having said carbon-carbon double bond, said reagent reacting with said compound by adding at said carbon-carbon double bond to form an adduct compound in said reaction mixture;
- and,
- contacting said reaction mixture having said adduct compound therein with LiAlH.sub.4 to form said diamine compound as a reaction product of said adduct compound and said LiAlH.sub.4, said reaction product diamine compound having adjacent primary amino groups.
Dependencies are inferred from the claim text.