Two potential novel environmentally friendly ashless vegetable oil additives, 2-mercaptobenzothiazole derivatives, di-n-dodecyl-[2-(2-benzothiazolyl)thio]ethylborane and di-n-dodecylthio-[2-(2-benzothiazolyl)thio]ethylborane, were synthesized and their tribological performance as additives in rapeseed oil was evaluated using a four-ball wear tester.

合成了兩種新型環(huán)境友好型植物油無(wú)灰添加劑婬乱A欧美大片，即二正十二烷氧基-2-[(2-苯并噻唑基)硫代]乙氧基甲硼烷和二正十二烷硫基-2-[(2-苯并噻唑基)硫代]乙氧基甲硼烷黄色视频精品在线。

In chapter four, the preperation of ytterbium diiodide was examined. The reductive cleavage of Se-Se bond and S-S bond induced by ytterbium diiodide was investigated. The reaction of diselenides and disulfides with allylic bromide promoted by ytterbium diiodide was also examined. The intermolecular Barbier-type reaction induced by ytterbium diiodide was studied. In the last section of this chapter, the intermolecular reductive coupling of nitriles with azides induced by samarium diiodide was investigated.

第四章人人操人人摸人人干五月，研究了二碘化鐿的制備方法黄美女，以及二碘化鐿作為一種優(yōu)良的單電子轉(zhuǎn)移試劑在有機(jī)合成中的應(yīng)用：二硒醚的Se--Se鍵和二硫醚S-S鍵的還原斷裂，及其在合成烯丙基硒醚国产人与动人物a级毛片，硒代酯和烯丙基硫醚欧美曰韩亚洲视品，硫代酯中的應(yīng)用，實(shí)驗(yàn)結(jié)果表明二碘化鐿也能促進(jìn)分子間的Barbier反應(yīng)欧美xxxxwwww，而文獻(xiàn)認(rèn)為二碘化鐿不能促進(jìn)分子間的Barbier反應(yīng)又粗又长又色又爽视频；最后研究了二碘化釤促進(jìn)的疊氮化合物與腈的交叉還原偶聯(lián)反應(yīng)，一步高收率地制備脒的方法。

The sodium dithiobenzoic acid was oxidized with potassium ferricyanide to obtain di disulfide.The influences of raw materials mole ratio,stirring method and reaction time on the yield were studied with orthogonal test.

用鐵氰化鉀溶液氧化二硫代苯甲酸鈉天天狠天天透天干天干2020，得雙二硫代苯甲酰，采用正交實(shí)驗(yàn)探討了4国产精品福利午夜久久香蕉，4'-偶氮雙(4-氰基戊酸)與雙二硫代苯甲酰反應(yīng)的投料比a成人黄色网站视频免费、攪拌方式、反應(yīng)時(shí)間對(duì)反應(yīng)收率的影響玖玖相交视频。

Higher lightintensity increased the content of aliphatic GS, however light supply has nosignificant effect on indolyl and aromatic GS, provided P supply was sufficient.

較強(qiáng)光照對(duì)脂肪族硫代葡萄糖苷的合成有促進(jìn)作用久久线视频；對(duì)吲哚族硫代葡萄糖苷和芳香族硫代葡萄糖苷則沒(méi)有顯著的影響。

Glucosinolates and thioglucoside glucohydrolaseform glucosinolate- myrosinase system in plant.

植物體中硫代葡萄糖苷和葡萄糖硫苷酶形成硫代葡萄糖苷-葡萄糖硫苷酶體系欧美性爱影视一区二区三区。

N-substituded thioacridones with five different structures were synthesized via a route involving Ull-man reaction, cyclization, N-alkylation and sulfurization. The structures of each thioacridone were identified with IR and MS. The results from UV-spectrophotometry show that the five N-alkythioacridones all have stronger absorption in the visible light region.

采用烏爾曼反應(yīng)欧美人成视频在线、酸催化環(huán)化、N-烷基化和硫代化四步反應(yīng)路線(xiàn)合成了5種不同結(jié)構(gòu)的N-取代硫代吖啶酮18禁看插她，利用IR和MS分析手段表征了其結(jié)構(gòu)天堂AⅤ久久天堂天天看，UV分光光度計(jì)的測(cè)定結(jié)果表明5種硫代吖啶酮在可見(jiàn)光區(qū)都有較強(qiáng)的吸收。

Diethylthiophosphoryl chloride was synthesized by reacting phosphorus thiochloride with anhydrous alcohol in the presence of NaOH, and then a novel phosphorus-nitrogen- and sulfur-containing flame retardant, 1, 4-di(O,O-diethyl thiophosphoryl imine) benzene, was synthesized via the reaction of diethylthiophosphoryl chloride with p-phenylenediamine.

以三氯硫磷與無(wú)水乙醇在NaOH存在下合成了二乙基硫代磷酰氯黄色网操B人人操老女人B网，然后再與對(duì)苯二胺反應(yīng)合成了新型的含磷国产美女激情视频、氮、硫的膨脹型阻燃劑：1超污国产黄网站在线观看，4-二（O国产一级A片免费视频在线观看，O-二乙基硫代磷酰亞胺基）苯。

The chemical deposition method was applied to prepare bismuth sulfide through reaction of bismuth salt complexed by triethanolamine or EDTA with an aqueous solution containing a sulfur sourse such as thioacetamide, thiourea, sodium thiosulphate, geseous H2S.

化學(xué)沉積方法用于準(zhǔn)備硫化鉍鉍鹽絡(luò)合的反應(yīng)人人操人操人人射，通過(guò)乙醇胺水溶液或edta一個(gè)含有硫源為硫代乙酰胺等www.se视频，硫、硫代硫酸鈉欧美国产综合在线、硫化氫geseous十八以下禁止观看的网站。

All of the tripodal schiff base ligands and their complexes were characterized.

以三乙醇胺、巰基苯胺黄软件在线观看、巰基乙胺為初始原料欧美日韩一区二区三区妖精，設(shè)計(jì)合成了六個(gè)三腳架結(jié)構(gòu)的化合物，其合成路線(xiàn)如下：三乙醇胺與氯化亞砜反應(yīng)得到三(2-氯乙基)胺(1)91亚洲高清视频在线，然后與巰基苯胺或巰基乙胺在堿性條件下反應(yīng)生成三腳架結(jié)構(gòu)的三{[2-(2-氨基苯基)硫代]乙基}胺(2)或三{[2-(2-氨基乙基)硫代]乙基}胺(3)可以看偷拍视频的网站，然后再與水楊醛、2-甲豕谙呤悠蹬访溃基-8-羥基喹啉(8)黄色免网站、2-甲酰基-8-芐氧基喹啉(7)反應(yīng)得到六種新型的含硫西佛堿化合

A four-ball tester was used to evaluate the load carrying and antiwear properties of bismuth dibutyldithiocarbamate,bis-dibutyldithiocarbamates(V7723),sulfurized isobutylene,molybdenum ester non sulfur and phosphorus in a mineral oil respectively and their synergistic effects.

利用四球試驗(yàn)機(jī)評(píng)價(jià)了二丁基二硫代氨基甲酸鉍與二丁基二硫代氨基甲酸酯(V7723)欧美一级黄色黑人操黑人、硫化異丁烯和非硫磷鉬酸酯添加劑的極壓和抗磨性能不卡视频在线一区二区，以及它們之間的極壓和抗磨協(xié)同作用。