Esterification with Aromatic Acyl-1,2,4-triazole Catalyzed by Weak Base at the Rate Comparable to Acyl ChlorideAcylationHalogen-free synthesisOrganic molecular catalystBenzoyl-1,2,4-triazole underwent esterification with a primary alcohol in the presence of 4-(N,N-dimethylamino)pyridine (DMAP) ...
For the first time, the acylation of cellulose was realized by activation of carboxylic acid with 1 H -benzotriazole. The reaction could be carried out under mild conditions. The acyl-1 H -benzotriazole reacts with cellulose leading to cellulose acetate, butyrate, caproate, benzoate, myristate, ...
1) acyl chloride esterification method 酰氯酯化法1. For the advantages of mild reaction conditions,DDC condensation method and acyl chloride esterification method are much more popular. 由于具有反应条件温和的优点,二环己基碳二亚胺(DCC)脱水缩合法和酰氯酯化法是目前国内外最常用的两种方法。
The C8-C16 acyl chlorides showed distinct enhanced reactivity toward the aliphatic hydroxyl groups, whereas C2 acyl chloride was found to react uniformly with any available OH irrespective of their chemical nature. The effects of long chain acylation on the polymer and material properties were also ...
acyl chloride to make an acyl chloride, and then react with alcohol. In the dichloromethane solvent, three ethylamine is added as the base, the effect is better, and the reaction speed is fast Answer: Ziyan, 3 (common exchanges, common progress!) time: ...
The preparation of N-acylsulfonamides is described using primary amines, arylsulfonyl chlorides and acyl chlorides. Reaction of primary aryl amines with ar... Ahmad,R.,Massah,... - 《Monatshefte Für Chemie》 被引量: 30发表: 2008年 Aqueous Extract of Acacia concinna Pods: An Efficient Surfacta...
CHARACTERIZATION, STABILITY AND ANTIOXIDANT ACTIVITY OF THE INCLUSION COMPLEX OF DIHYDROMYRICETIN WITH HYDROXYPROPYL-β-CYCLODEXTRIN BENGUO LIU,YUXIANG MA,CHAO YUAN,... - 《Journal of Food Biochemistry》 - 2012 - 被引量...
Usual methodologies apply acyl chloride in pyridine or anhydrides but with long-chain esters this procedure proved to be ineffective because of the low yields obtai... G Vitor,MA Vieira,L Valdemar,... - 《J.braz.chem.soc》 被引量: 7发表: 2015年 Conductivity Detection of Pectin: A Rapid ...
Esterification of Shambat Cotton Cellulose using weth acyl chlorides: Myristoyl (C14), palmitoyl (C16), using N,N-Dimethyl Acetamide/Lithium Chloride Solvent SystemShambat cotton contains about 96 % cellulose with a high degree of crystallinity. Cellulose is an important source in textile industry....
Nucleophilic Acyl Substitutions of Esters with Protic Nucleophiles Mediated by Amphoteric, Oxotitanium, and Vanadyl Species. J. Org. Chem. 70, 1328–1339 (2005). 36. Iwasaki, T., Maegawa, Y., Hayashi, Y., Ohshima, T. & Mashima, M. Transesterification of Various Methyl Esters Under Mild ...