Ketalazation of the triacetylbenzene(1) with 2,2-dibromomethyl-1,3-propanediol by using 4-methyl-benzenesulfonic acid as catalyst,yielded 1,3,5-tri-(1-methyl-2,6-dioxaspiro-4,4-dibromomethyl-cyclohexyl)benzene(2),which reacted with 5,5-dimethyl-4,6-dioxa-1,3-cyclohexanedione in C2H5ONa giv-ing 1,3,5-tri-[7-(7-methyl-2,2-di-ethoxycarbonyl-6,8-dioxaspiro[3.
1与二溴新戊二醇在酸的作用下发生缩酮化反应,制成1,3,5-三-(1-甲基-2,6-二氧杂-4,4-二溴甲基环己基)苯(2)。
1,3,5-tri-(1-methyl-2,6-dioxaspiro-4,4-dibromomethylcyclohexyl)benzene(Ⅱ) was prepared by ketalazation of triacetyl benzene(Ⅰ)and 2,2-dibromomethyl-1,3-propanediol by p-methyl benzene sulfonic acid as catalyst.
(Ⅰ)与二溴新戊二醇在酸的作用下发生缩酮化反应,制成1,3,5-三-(1-甲基-2,6-二氧杂-4,4-二溴甲基环己基)苯(Ⅱ)。
The 5,5-Bis(bromomethyl)-2-hydroxy-2-oxo-1,3,2-dioxaphosphorine was prepared by dibromoneopentyl glycol and phosphorus pentoxide.
以五氧化二磷、二溴新戊二醇为原料合成了5,5-二溴甲基-2-羟基-2-氧代-1,3,2-二氧磷杂环己烷,采用元素分析,IR,1H-NMR,13C-NMR等分析方法进行表征,确定了结构。
The properties of waterborne polyurethane modified by dibromoneopentyl glycol(DBNPG) have been studied.
对二溴新戊二醇(DBNPG)阻燃改性水性聚氨酯的性能进行了研究。
dibromomononepentyl glycol
二溴-新戊基乙二醇
polydiethylene glycol glutarate
聚戊二酸二乙二醇酯
Kinetic Study of Solid-solid Transition in Polyhydric Alcohol and the PG/NPG Binary System;
三羟甲基乙烷、新戊二醇及其二元体系固—固相变贮热的动力学研究
styrene dibromide
α,β-二溴乙基苯
Synthesis of Instumescent Flame Retardant Agent 1,2-Di (5,5-bismethyl-1,3-oxy-2-phosphacyclohexameamine) ethane
膨胀型阻燃剂新戊二醇乙撑磷酰胺的合成
Synthesis of 1,3-dioxolane-4,5-bis(bromomethyl)-2-phenyl
1,3-二氧戊环-2-苯基-4,5-二苄溴的合成
Study on the chromogenic reaction of the system Samarium (III) DBS-chlorophosphonazo-hexadecylpyridinium bromide-ethanol;
二溴磺酸偶氮氯磷-溴代十六烷基吡啶-钐-乙醇显色体系的分析研究
benzalacetophenone dibromide
亚苄基乙酰苯化二溴
1,2-dibromo-2,2-dichloroethyl dimethyl phosphate
１,２－二溴－２,２－二氯乙基二甲基磷酸酯
ethylene glycol dimethacrylate
乙二醇二甲基丙烯酸酯
Study on the Synthesis of Neopentyl Glycol Dimethylacrylate over Solid Acid Catalysts;
固体酸催化合成甲基丙烯酸新戊二醇酯的研究
Phenobarbital diethylaminoethanol
苯巴比妥－二乙基氨乙醇
Synthesis of 2,2 Bis(bromomethyl) 1,3 propanediol
2,2-二(溴甲基)-1,3-丙二醇的合成
Calculation of ～1H NMR of Pentanediol Aromatic Diester and the Mechanism Research of Propene Bromination;
二芳酸戊二醇酯～1H核磁计算与丙烯溴化机理研究
Study on the Synthesis of Neopentyl Glycol Dimethylacrylate over Eco-friendly Catalysts;
二甲基丙烯酸新戊二醇酯的绿色催化合成工艺研究
Preparation of N,N'-diphenyl-2,4-diacetyl-glutaramide
N,N′-二苯基-2,4-二乙酰基戊二酰胺的制备
EMGP (Ethylmethylglycol Phthalate)
邻苯二甲酸乙基甲基乙二醇酯
Crosslinked vibration-absorbing bamboo powder/styrene-isoprene block copolymer/bromobutyl rubber composites
交联型竹粉/苯乙烯-异戊二烯嵌段共聚物/溴化丁基橡胶吸振复合材料
