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Insertion and fragmentation of 2-ferrocenylmethylidene-1, 3-diketones upon their reactions with N-methylhydrazine

✍ Scribed by Elena I. Klimova; Eduardo A. Vázquez López; Juan M. Martínez Mendoza; Lena Ruíz Ramírez; Marcos Flores Alamo; Leon V. Backinowsky

Publisher: Journal of Heterocyclic Chemistry
Year: 2009
Tongue: English
Weight: 274 KB
Volume: 46
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.94

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✦ Synopsis

Abstract

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Reactions of 2‐ferrocenylmethylidene‐1,3‐diketones (1a, 1b, 1c) with methylhydrazine afford mainly insertion products (∼40–58%), viz., 1‐(N′‐acyl‐N′‐methylhydrazino)‐1‐ferrocenyl‐2‐acylethanes (7a, 7b, 7c, 7d), together with lesser amounts of pyrazoles (8a, 8b) and dihydropyrazoles (9a, 9b). J. Heterocyclic Chem., 46, 484 (2009).

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