非光气法合成直接耐晒桃红BK的研究

A Safe Phosgenation Method for Synthesis of C.I. Direct Red 75

二（三氯甲基）碳酸酯是一稳定的固体化合物，本文将它用于替代光气合成直接耐晒桃红ＢＫ，研究了反应条件对合成收率的影响。结果显示，该法安全、方便、收率高，可望工业化。

Abstract Bis(trichloromethyl)carbonate,a safe solid crystalline,is used to substitute for phosgene in the synthesis of C.I.Direct Red 75.The reaction conditions were optimized.The process is safe,simple, convenient and with good yield.