I and salts, esters and amides thereof, in which R1 and R2 represent hydrogen, alkyl or alkenyl (1-4 C), R3 represents hydrogen, halogen, hydroxy, alkyl (1-4 C) or alkoxy (1-4 C), n has the value 0, 1 or 2 and ALK is a saturated or unsaturated hydrocarbon radical with 3-12...
摘要: The invention relates to novel asymmetrically substituted diaminodicarboxylic acid derivatives of the formula <IMAGE> and to a process for their preparation by mixed Kolbe synthesis.收藏 引用 批量引用 报错 分享 全部来源 求助全文 掌桥科研 0...
Summary 2917399090 aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% 英文别名 3c,4t-diphenyl-cyclobutane-1r,2t-dicarboxylic acid 1,2-Diphenylcyclobu...
SummaryHS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)...
Rights and permissions Reprints and permissions About this article Cite this article Ismatov, D.N., Azizov, U.M., Nurullaeva, M.K. et al. Synthesis and properties of 1,4-benzodiketo- and 1,4-benzomono-ketodicarboxylic acids and their derivatives. Pharm Chem J 25, 498–502 (1991). ...
The dicarboxylic acids and their derivatives containing a cycle, imidazolidine - 4,5 - dione, and for their preparationDicarboxylic acids and dicarboxylic acid derivatives which contain N,N- imidazolidine-4,5-diones are useful monomers for the manufacture of polymers, in particular polyesters....
EP0476257A1 Jul 13, 1991 Mar 25, 1992 Hüls Aktiengesellschaft Aminodicarboxylic acids and their derivatives as stabilizers for the oxygen bleaching of fabric during washingEP0476257A1 * Jul 13, 1991 Mar 25, 1992 Hüls Aktiengesellschaft Aminodicarbonsäuren und deren Derivate als Stabilisatoren ...
US2729665 * 1952年3月17日 1956年1月3日 Union Oil Co Dicarboxylic acids and their derivatives and production of the same from paraffin waxUS2729665 * Mar 17, 1952 Jan 3, 1956 Union Oil Co Dicarboxylic acids and their derivatives and production of the same from paraffin wax...
Methods for production of aromatic dicarboxylic acids and derivatives thereofProvided are methods for the production of isophthalic acid (IP A) and derivatives thereof. The methods are based on the addition of beta propiolactone to furfural or a derivative thereof. Provided are cost effective routes ...
Dicarboxylic acids derivatives containing a nitrogen or oxygen heteroring, process for their preparation and their use as medicinesCompounds (I): …… in which ……- the broken lines denote an optional endo or exo double bond; …- R1 and R2 denote a hydrogen, an alkyl, alkenyl, alkynyl (-...