ChemInform Abstract: Regiospecific Synthesis of N-Sulfanilyl Heterocyclic Ketene Aminals.
โ Scribed by Z.-X. REN; Z.-J. LI; Z.-T. HUANG
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 26 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0931-7597
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๐ SIMILAR VOLUMES
The regiospecific N-sulfonylation and N-phosphorylation of benzoyl-substituted heterocyclic ketene aminals have been investigated. In the presence of sodium hydride, benzoyl-substituted heterocyclic ketene aminals 1 or 2 reacted with p-toluenesulfonyl chloride 3 to give (E)-1-(p-toluenesulfonyl)-2-(
Regioselective Acylation of Heterocyclic Ketene Aminals with Acetyl Chloride. -Acylation of ketene aminals (I) affords exclusively the N-acylated products (IV), while in the presence of triethylamine and Hg(CN)2 the C-acylated products (III) predominate together with (IV) as minor products. The (E)