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An efficient method for the preparation of N,N-disubstituted 1,2-diamines

✍ Scribed by Judith M Mitchell; Nathaniel S Finney


Publisher
Elsevier Science
Year
2000
Tongue
French
Weight
62 KB
Volume
41
Category
Article
ISSN
0040-4039

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✦ Synopsis


C 2 -Symmetric 1,2-diamines are useful precursors to numerous reagents used in asymmetric synthesis and catalysis. We report here an efficient protocol for converting the two most commonly used trans-1,2-diamines to N,N-disubstituted derivatives, a transformation that simplifies the preparation of non-C 2 -symmetric diamines. Central to the method is the high-yielding conversion of the diamines to the corresponding monoacetylated derivatives via imidazoline intermediates.


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ChemInform Abstract: An Efficient Method
✍ Judith M. Mitchell; Nathaniel S. Finney πŸ“‚ Article πŸ“… 2001 πŸ› John Wiley and Sons βš– 31 KB πŸ‘ 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a β€œFull Text” option. The original article is trackable v

An efficient method for the synthesis of
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A simple method for the preparation of N,N%-dimethyl-1,2-diamines is described. The method requires the dimethylation of a diazaphospholidine oxide followed by acid-catalysed hydrolysis.

N,N-disubstituted carbamates, reagents f
✍ Uri Micheal; Anna-Britta HΓΆrnfeldt πŸ“‚ Article πŸ“… 1970 πŸ› Elsevier Science 🌐 French βš– 213 KB

Although organometallic compounds are known to react with carboxamides to yield ketones [l]. N,N-disubstituted carbamates (DSC) have not previously been used for their preparation. Thus, interaction-of two equivalents of an organometallic compound with one equivalent of DSC (0.5 -3 hours at -70' to