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2-Pyrazolines from 1,3-Dipolar Cycloaddition of Diazomethane to Arylsulfonylethenes.

✍ Scribed by Venkatapuram Padmavathi; Mudigonda Rajagopala Sarma; Adivireddy Padmaja; Dandu Bhaskar Reddy


Publisher
John Wiley and Sons
Year
2004
Weight
136 KB
Volume
35
Category
Article
ISSN
0931-7597

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✦ Synopsis


Abstract

For Abstract see ChemInform Abstract in Full Text.


πŸ“œ SIMILAR VOLUMES


[3 + 2] Cycloaddition of Diazomethane De
✍ J. Grobe; A. Armbrecht; D. Le Van; B. Krebs; J. Kuchinke; M. LΓ€ge; E.-U. WΓΌrthwe πŸ“‚ Article πŸ“… 2001 πŸ› John Wiley and Sons 🌐 German βš– 195 KB πŸ‘ 1 views

Perfluoro-2-phosphapropene (1) reacts with diazo compounds R(H)C=N 2 (R = H (2 a), Ph (2 b), CO 2 Et (2 c), Me 3 Si (2 d)) at low temperatures regioselectively yielding via 1,3-H shift the novel 1,2,3-diazaphospholes 4 aΒ±d. The mesomerically stabilized compounds 4 b and 4 c were characterized by NMR