Using triphenylchloromethane instead of triphenylmethano l and taking boron trifluoride etherate as catalyst, the protection of mer capto group can be successfully performed, whose yield is increased from 72% to 95%.
采用三苯氯甲烷替代三苯甲醇 ,以 BF3· Et2 O作为催化剂保护巯基 ,产率明显提高(72 %～ 95% ) ;采用乙腈的水溶液作为反应体系 ,控制投料温度 ,活泼酯与氨基酸能顺利结合 ,产率普遍达到 85% ,节省了原料 ,并大大简化了实验操作 。
The trityl methyl ether can react with hydrogen chloride and get the commercial chemical material trityl chloride with high yield.
在HCl作用下完成醚键断裂,把三苯甲基甲醚转化为三苯基氯甲烷,收率95。
Selective hydroxyl protected reaction of sucrose by trityl chloride and acetic anhydride was investigated.
以三苯基氯甲烷和乙酸酐依次对蔗糖的8个羟基进行选择性保护,考察了反应配比、温度、溶剂对蔗糖保护过程的影响。
The Relationship between T_g and Composition in Polystyrene/Triphenylmethyl Chloride Blends;
聚苯乙烯/三苯基氯甲烷混合体系T_g与组成关系的研究
1,1,1-trichloroethane [methyl chloroform] [C2H3Cl3]
1,1,1－三氯乙烷〔甲基氯仿〕
triphenylmethane triisocyanate
三苯基甲烷三异氰酸酯
octadecyl trimethyl ammonium chloride
十八烷基三甲氯化铵
SPECTROPHOTOMETRIC DETERMINATION OF Zr(Ⅳ) WITH 2,4-DICHLOROPHENYLFLUORONE-CTMAB SYSTEM
2,4-二氯苯基荧光酮-溴化十六烷基三甲铵分光光度法测定微量锆
Studies on the Alkylation Reaction of Chlorinated Polypropylene with Toluene;
氯化聚丙烯与甲苯烷基化反应的研究
Synthesis of N-(3-chlorophenyl)-1-adamantanecarboxamide
N-(3-氯苯基)金刚烷甲酰胺的合成
SYNTHESIS OF 1,2,4,5-TETRAMETHYLBENZENE BY ALKYLATION OF 1,2,4-TRIMETHYLBENZENE WITH METHANOL
偏三甲苯甲醇烷基化制备均四甲苯的工艺研究
c12-c15 alkyl benzoate
c12-c15烷基苯甲酸
Solution polymerized butadiene-styrene rubber modified with hexamethylcyclotrisiloxane
六甲基环三硅氧烷改性溶聚丁苯橡胶
Synthesis of N-(4-Chloro-3-trifluoromethylphenyl)-N′-(4-bromophenyl) urea
N-(4-氯-3-三氟甲基苯基)-N′-(4-溴苯基)脲的合成
STUDY ON MICRO-DETERMINATION OF 1, 4-BIS (TRICHLOROMETHYL) BENZENE
1,4-双(三氯甲基)苯的微量分析研究
(F13) Trifluorochloromethane
GB/T9017-1988三氟一氯甲烷
Trichloromethane for industrial use
GB/T4118-1992工业三氯甲烷
trichloromonofluoromethane(freon 11)
三氯-氟化甲烷（氟利昂11）
alkyldimethyl benzylammonium chloride
烷基二甲基苄基氯化铵
SYNTHESIS OF HEAVY ALKYLBENZENE CATALYZED BY COMPLEX OF ALUMINUM CHLORIDE AND ETHER
三氯化铝乙醚络合物催化合成重烷基苯
europium-tri-dibenzoylmethane laser
铕-三、二苯酰甲烷激光器
