Intramolecular Trapping of a Phosphazide by an Imine: Formation of 2,3-Diamino-2H-indazole Derivatives from o-Azidobenzaldimines and Tertiary Phosphines

DOI: 10.1016/S0040-4039(01)93353-2

Source and publish data:

Tetrahedron Letters p. 6237 - 6240 (1989)

Update date:2022-08-04

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Authors:

Molina, Pedro

Arques, Antonio

Vinader, Maria Victoria

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Article abstract of DOI:10.1016/S0040-4039(01)93353-2

Treatment of o-azidobenzaldimines with tertiary phosphines in dichloromethane at 0 deg C gave the corresponding 2,3-diamino-2H-indazole derivatives in good yields via the Staudinger reaction followed by cyclization of the intermediate phosphazide.

Full text of DOI:10.1016/S0040-4039(01)93353-2

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