K. Pilgram, R. D. Skiles
Mar 1, 1988
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Journal
Phosphorus Sulfur and Silicon and The Related Elements
Abstract
Abstract Reductive cyclization of 2-nitrodiphenylamines with trialkyl phosphites provides an efficient one-pot synthesis of 1,3-dihydro-1,3,2-diazaphosphole 2-oxides. Further exhaustive alkylation at elevated temperature is accompanied by rupture of both P[sbnd]N bonds, leading to N-alkylated 2-aminodiphenylamines.