四溴

Bis(1,2,3,4-tetrahydroisoquinoline-2-ylmethyl) HBr salt (K2) guest has been synthesized from 1,2,3,4- tetrahydroisoquinoline and ethylenedibromide. The self-assembly interaction models of cucurbit[8]uril (Q[8]) with this synthetic guest have been investigated by using 1H NMR technique, single crystal X-ray diffraction determination and theoretic calculation method.

以用1，2，3，4-四氢喹啉和二溴乙烷合成的二(2-亚甲基-1，2，3，4-四氢异喹啉)的溴化氢酸盐为客体，八元瓜环为主体，利用1H NMR技术，单晶X射线衍射方法以及理论计算等方法，考察了两者的自组装模式。

0 G of cyclopentyl bromide and 19.4 g of magnesium are reacted in ether or THF to give a cyclopentyl Grignard reagent.

一百十九点零克的环戊基溴或溴环戊烷和十九点四克的镁在乙醚或四氢呋喃中产生反应，形成一个环戊格氏试剂。

The results showed that the unsaturated fatty acid content of pecan kernel oil was 89 0%,and 13 kinds of unknown components such as nonadecaol,8 hexyl pentadecane,10 methyl eicosane,11,14 eicosadienoic acid,1 bromo 8 heptadecyne,9 hexyl heptadecane,tetracosane,13 docosenoic acid,1 bromo 7 nonadecyne,15 tetracosenoic acid,hexacosanoic acid,7 hexyl ei...

研究结果表明：山核桃仁油中的不饱和脂肪酸 w =89 0 %，未知成分是十九醇、8 己基十五烷、10 甲基二十烷、11，14 二十碳二烯酸、1溴 8 十七炔、9 己基十七烷、二十四烷、13 二十二碳烯酸、1 溴代 7 十九炔、15 二十四碳烯酸、二十六酸、7 己基二十烷、二十七烷共 13种，其中13 二十二碳烯酸、15 二十四碳烯酸、十九醇等具有较强的生理活性和药用价值

Seven of them have not been reported.Their structures were confirmed by IR,~1HNMR,MS,and element analysis. 4.Meanwhile,the green methylation procedure of imides was developed by using dimethyl carbonate as methylation reagent.A series of imides,for example,phthalimide,3,4-dibromo-maleimide and succincide were used for substrates.The effects of DABCO(1,4-diazabicyclo [2.2.2]octane)and DBU(1,8-diazabicyclo[5.4.0]undec-7-ene)as a catalyst in this kind of reactions were investigated.2-Bromo-3-(1-methylindolyl-3-yl)-1-methyl-1H-pyrrole-2,5-dione was prepared by using dimethyl carbonate,which further expanded the use of dimethyl carbonate,as a green agent in organic synthesis.

在以硫酸二甲酯为甲基化试剂对3，4-二溴马来酰亚胺进行N-甲基化反应合成3，4-二溴-N-甲基马来酰亚胺的同时，以碳酸二甲酯为甲基化试剂，对3，4-二溴马来酰亚胺、邻苯二甲酰亚胺、琥珀酰亚胺等酰亚胺类化合物的N-甲基化反应进行了研究；考察了1，4-二氮杂双环[2.2.2]辛烷，1，8-二氮杂双环[5.4.0]十一碳-7-烯、碳酸钾和四丁基溴化铵等作为催化剂对碳酸二甲酯N-甲基化反应的反应时间和收率等的影响，并应用碳酸二甲酯为甲基化试剂，合成了N-甲基-3-溴-4-(1-甲基-吲哚-3)-马来酰亚胺。

Propargyl alcohol was protected by dihydrophran with the catalysis of PPTS ,and then reacted with Ethyl Mag bromide to prepare its corresponding Grignard reagent.

炔丙醇在 PPTS 催化下由二氢吡喃保护，与溴乙烷格氏试剂反应生成相应的格氏试剂，然后与氯甲酸甲酯反应得到羟基丁炔酸甲酯四氢吡喃醚，在 PPTS 催化下脱保护后进行甲磺酰化，由溴化钠进行溴取代后合成了4-溴-2-丁炔酸甲酯，总收率达53%。

In the presence of the phase transfer catalysts such as tetramethylammonium bromide, tetraethylammonium bromide or polyethylene glycol(MW 400 and 6,000),lithium hydroxide is the best alkali among lithium hydroxide ,sodium hydroxide and potassium hydroxide.

研究表明在溴化四甲基铵、溴化四乙基铵、聚乙二醇（分子量为6，000）和聚乙二醇（分子量为400）相转移催化体系中，氢氧化锂最好，氢氧化钾次之，氢氧化钠最次。

Two types of P Br N contained flame retardant,O (2,4,6 1 trioxo 1 oxyphosphabiscyclooctane 4 methylene) O (2,3 dibromopropyl)phosphoric melamine salt and O (2,4,6 tribromophenyl)phosphoric melamine salt,were synthesized from phosphorus oxychloride,pentaerythritol,2,3 dibromopropanol,2,4,6 tribromophenol and melamine,etc.

以三氯氧磷、季戊四醇、2 ，3 二溴丙醇、2 ，4，6 三溴苯酚及三聚氰胺等为原料合成了两种含磷溴氮阻燃剂，即O (2 ，4，6 三氧杂 1 氧基磷杂双环 [2 。2 。2 ]辛烷 4 亚甲基) O 2 ，3磷酸三聚氰胺盐和O (2 ，4，6 三溴苯基)磷酸三聚氰胺盐。

Also, the type of dispersion of four gasliquid-liquid systems: air-decane-aqueous solution of sodium sulfite and surfactant, airmixture of decane and dodecene-aqueous solution of rhodium complex, ligand, and surfactant, air-mixture of decane, dodecene and tridecyl aldehyde-aqueous solution of rhodium complex, ligand and surfactant, and air-mixture of decane and dodeceneaqueous solution of trisodium salt of tri (m-sulfophenyl) phosphine, and surfactant is determined by electric conductivity.

本文采用电导率测量的方法实验研究了空气—正癸烷—亚硫酸钠和十六烷基三甲基溴化铵水溶液、空气—正癸烷和1-十二碳烯混合物—铑膦络合物催化剂和十六烷基三甲基溴化铵水溶液、空气—正癸烷、1-十二碳烯和十三醛混合物—铑膦络合物催化剂和十六烷基三甲基溴化铵水溶液、空气—正癸烷和1-十二碳烯混合物—三间磺化苯基膦三钠盐和十六烷基三甲基溴化铵水溶液四个三相体系的液液分散特性。当有机相与水相体积比分别为7／3、1／1和3／7时，前三个体系均形成水包油型分散，并有稳定的乳状液生成。

The compound 3, 9-bis (2＇, 4＇, 6＇-tribromophoxy)-2, 4, 8, 10-traoxa -3, 9-dip- hosphospiro [5.5] undecane -3, 9-dioxide (HFR-1) was prepared with pentaeryth- ritol, phosphorus oxychloride and 2, 4, 6-tribromophenoxy soldium by esterifica- tion and condensation reaction.

以三溴苯酚钠、三氯氧磷、季戊四醇为原料，通过酯化和缩合两步反应合成了阻燃剂3，9-双(2'，4'，6'三溴苯氧基)-2，4，8，10-四氧代-3，9-二磷螺环-3，9-二氧[5.5]十一烷。

Tetraallylsilane was synthesized by one-step approach through the reaction of silicon tetrachloride with the partially solvated Grignard reagents formed in situ from allyl bromide and magnesium in the mixed solvents of toluene and ether.

采用一步合成方式，将3-溴丙烯与金属镁在以甲苯和供电子溶剂构成的混合溶剂中进行反应，继而与四氯化硅反应，成功合成了四烯丙基硅烷，其产率在乙醚与3-溴丙烯的摩尔比为4(V甲苯/V乙醚=1·1)时达到极值，超过了91%。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新