The Selective Replacement of the Aromatic Primary Amino Group by Hydrogen in Aromatic--Aliphatic Diamines

N Kornblum, DC Iffland

Index: Kornblum; Iffland Journal of the American Chemical Society, 1949 , vol. 71, p. 2137,2138,2140

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Citation Number: 93

Abstract

Anal. Calcd. for C21H2602: C, 81.3; H, 8.4. Found: C, 81.0; H, 8.1. a,a'-Diethyl-4 '-acetoxy-4-acetoxyacetylstilbene (IX) .- The acid chloride from 1.00 g. of the acetoxystilbene acid dissolved in 10 cc. of dry benzene was added dropwise to a cold (0-5 ") ethereal solution of diazomethane (prepared from 4.4 g. of nitrosomethylurea, dried over potassium hydroxide and distilled). After standing at room tem- perature for nineteen hours, the excess diazomethane and ether were removed ...

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