Carboxylic-acid-anhydride网络羧酸酐;酸酐类;有化 网络释义 1. 羧酸酐 高分子专业英语_百度文库 ... carboxylic acid 羧酸 carboxylic acid anhydride 羧酸酐 carcinogenic 致癌物的 ... wenku.baidu.com|基于6个网页 2. 酸酐类 ...5C OC2H5 + N H + _ Cl (3)酸酐类(carboxylic acid anhydride)+醇 O ...
PURPOSE:To obtain the titled compound, having good hue and useful as a raw material for resins, e.g. polyimide, etc., and various derivatives at a low cost without deterioration by thermal discoloration, by dehydrating 1,2,3,4- butanetetracarboxylic acid under specific condition. CONSTITUTION:...
The present invention relates to copolymer process aids having a carboxylic anhydride or acid functionality and a hydrophobic functionality. The copolymer process aid can be used in the exfoliation of a nanoclay, where it can be made in situ; and can also serve as a compatibilizer for exfolia...
Novel carboxylic acid dianhydrides are obtained by esterifying or trans-esterifying hydantoindiols, or diesters thereof, of the formula ##STR1## in which m and n are each a number from 1 to 4 and R.sub.1 and R. sub.2 are each an alkyl having 1 to 5 C atoms, or R.sub.1 an...
3) dicarboxylic acid anhydrides 二元羧酸酐 1. According todicarboxylic acid anhydridescan rapidly react quantitatively with aniline to form anilic acid in special conditions. 根据二元羧酸酐在一定的条件下 ,能和苯胺等摩尔地反应生成缩苯酰胺酸① ,而缩苯酰胺酸能用KOH的醇溶液进行准确滴定 ,反应终点敏锐易...
A variety of thiiranes react with acetic anhydride in acetic acid in the presence of a base to form the corresponding thiocarboxylic esters in excellent yields (>98%) <1996CPB4645, 1996T12677> (Equation (27)). (27) The reaction may also take place in the presence of a catalyst, e.g....
arranged catalyst bed at least, however sees with flow direction, the catalyst bed whose one activity is higher at least in the front of the catalyst bed whose activity is lowest is arranged, carboxylic acid and/or it regards the catalyst system in order to produce the carboxylic acid ...
A rapid and mild esterification method using carboxylic 2,4,6-trichlorobenzoic anhydrides in the presence of 4-dimethylaminopyridine was developed. The method was also successfully applied to the synthesis of large-ring lactones, includi... J Inanaga,K Hirata,H Saeki,... - 《Bulletin of the ...
Anhydride, any chemical compound obtained, either in practice or in principle, by the elimination of water from another compound. Examples of inorganic anhydrides are sulfur trioxide, SO3, which is derived from sulfuric acid, and calcium oxide, CaO, deri
英文同义词: CIS-1,2-CYCLOHEXANEDICARBOXYLIC ANHYDRIDE (HHPA);1,3-Isobenzofurandione, hexahydro-, (3aR,7aS)-rel-;CIS-1,2-CYCLOHEXANEDECARBOXYLICANHYDRIDE;CIS-1,2-CYCLOHEXANEDICARBOXYLIC ANHYDRIDE;CIS-HEXAHYDROPHTHALIC ANHYDRIDE;CIS-HHPA;CIS-CYCLOHEXANE-1,2-DICARBOXYLIC ANHYDRIDE;HEXAHYDROPHTHALIC ACID ...