Synthesis of arylsulfonylcarbamic acid derivatives using a new, phosgene-free method
✍ Scribed by Gábor Besenyei; Sándor Németh; László I. Simándi
- Book ID
- 104225916
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- French
- Weight
- 226 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
Arylsulfonylcarbamic acid esters, thioesters, and amides, 3, have been prepared via catalytic carbonylation of alkali metal salts of N-chloroarylsulfonamides, 1, and treatment of the reaction mixture with R'XH (X=0, S, NR'). Arylsulfonylcarbamic acid derivatives, ArSO,NHC(O)XRl, 3, (Ar = aryl, x=o,s, Rl=alkyl, aryl; X=NR', Rl=H, alkyl, aryl R2=H, acyl, heteroaryl) such as esters, thioesters and amides (ureas) exhibit useful biological
📜 SIMILAR VOLUMES
Ahatraet-A novel synthesis of the berbine ring skeleton by the way of the berbin-8-ones is reported. Treatment of I-benzyl-1,2,3,4-tetrahydroisoquinolines la-d with phosgene gas gave a new series of Nchloroformyl derivatives 2ad. Intramolecular ring closure of these compounds in presence of a Lewis