作者机构：
[罗一鸣; 刘长辉; 唐瑞仁] School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China;[杨华武] The Technology Center, Changsha Cigarette Factory, Changsha 410014, China;[刘长辉] Department of Chemistry and Environmental Engineering, Hunan City University, Yiyang 413029, China
通讯机构：
School of Chemistry and Chemical Engineering, Central South University, China
作者机构：
[付时雨] State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China;[周攀登] Department of Chemistry and Environment Engineering, Hunan City University, Yiyang 413000, China
通讯机构：
[Fu, S.] S;State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, China
摘要：
Benzil is an important photosensitive initiator of organic synthesis intermediates,medicinal intermediates and ultraviolet solidified resin (UVresin),and is usually prepared by oxidizing benzoin, The oxidizers and methods reported are mainly;(PhCH_2Et_3N)~+Br~-/(PhCO)_2O_2/MeCN~[1],DMSO/(COCL)_2 CH_2CL_2~[2],CrO_3·CH_3NH_2·HCl/Al_2O_3~[3], the metallorganic compound~[4],microwave radiation~[5],etc.The reaction conditions of some methods are harsh, the toxicity is heavy, the reaction reagent is expensive, the preparation is difficult, the aftertreatment is tedious or the conversion ratio of materials is low.Cupric compound is a kind of weak oxidizer.Up till now there is only the report of oxidizing benzoin with cupric sulfate-pyridine~[6] with cupric acetate-acetic acid~[7].This paper studies the problem of oxidizing benzoin by using cupric nitrate, cupric chloride, cupric sulfate,cupric acetate and cupric subcarbonate as oxidizers.The experimental results indicate that these cupric compounds can all oxidize benzoin into benzil in acetic acid solutions, and cupric nitrate is the best one.Its product has these adventages of fine color and luster,high yield, available raw material and simple and easy operation and it has the prospects of being used widely.
作者机构：
[张鲁西; 管仕斌; 俞善信] Department of Chemistry, Coll. of Chem. and Chem. Engineering, Hunan Normal University, Changsha 410081, China;[文瑞明] Dept. of Chem./Environmentally Eng., Hunan City University, Yiyang 413049, China
摘要：
1 INTRODUCTION
Catalytic hydrodechlorination is an elegant reaction for disposal of environmentally hazardous chlorocarbons,such as chloro-benzene[1].Development of a new catalyst with excellent stability is necessary due to the deactivation of supported noble metal catalysts[1].However the modification of catalytic properties of catalysts in hydrodechlorination reaction by introducing stable ligands to noble metals has been the least studied.Here the synthesis of Pd(Ⅱ) 2,9,16,23-symetrically tetrasubstituted phthalocyanines PdPTX4 (where X=-H,-NO2,-NH2 respectively) from phthalimide derivatives is reported,and their application as catalysts in hydrodechlorination of chlorobenzene,which is a representative environmentally hazardous materials is discussed.
