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Updated: Jul 27, 2025

Preparation of N-2-alkoxyvinylsulfonamides from N-tosyl-1,2,3-triazoles and Subsequent Conversion to Substituted Phthalans and Phenethylamines
Published on: January 3, 2018
5-[(4-Methyl-phen-yl)sulfon-yl]-1-phenyl-thio-pyrano[4,3-
Benjamin Dassonneville1, Dieter Schollmeyer1, Heiner Detert1
1University of Mainz, Department of Chemistry, Duesbergweg 10-14, 55099 Mainz, Germany.
Abstract:
Rhodium-catalyzed [2+2+2] cyclo-addition of carbon di-sulfide to o,N-dialkynyl-tosyl-anilines gives two isomeric indolo-thio-pyran-thio-nes, a violet and a red isomer. This is the first crystal structure of a red isomer, which crystallizes with one solvent mol-ecule of di-chloro-methane in the asymmetric unit, C24H17NO2S3·CH2Cl2. In the extended structure, centrosymmetric pairs of the planar annulated system are arranged in strands and solvent mol-ecules fill the space between the strands.
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