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2,6-Diaryl-4,4-disubstituted-4H-thiopyran: Source for Spiro Heterocycles.

✍ Scribed by Venkatapuram Padmavathi; Akula Balaiah; Dandu Bhaskar Reddy

Publisher
John Wiley and Sons
Year
2010
Weight
36 KB
Volume
33
Category
Article
ISSN
0931-7597

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πŸ“œ SIMILAR VOLUMES

2,6-Diaryl-4,4-disubstituted 1,4-dihydro
2,6-Diaryl-4,4-disubstituted 1,4-dihydropyridines: Source for spiro heterocycles
✍ V. Padmavathi; A. Balaiah; T. V. Ramana Reddy; B. Jagan Mohan Reddy; D. Bhaskar πŸ“‚ Article πŸ“… 2003 πŸ› John Wiley and Sons 🌐 English βš– 86 KB

## Abstract Novel spiro heterocycles (**__5–12__**) were obtained by the cyclocondensation of 2,6‐diaryl‐4,4‐dimethoxycarbonyl‐/4‐cyano‐4‐ethoxycarbonyl‐1,4‐dihydropyridines(**__3/4__**) with hydrazine hydrate, hydroxylamine hydrochloride, urea, and thiourea. All the compounds were characterized by