The optimum reaction conditions are as follows: diphenylmethanethiol : methyl chloroacetate is 1:1.5, and the reaction carried out at 100℃ for 4 h, 2- acetamide can be carried out in the room temperature for 20 h, the yield of 2- acetamide was 76%, hydrogen dioxide: 2- acetamide is 1:1, and the reaction carried out at 60℃ for 3 h, the yield of modafinil was 79%, the total yield of reaction can be reached 48%.

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Two haptens of MCPA, 6-[(2-methyl-4-chlor phenoxy aceto amino] hexanoic acid and 4-[(2-methyl-4-chlor phenoxy aceto amino]butanoic acid were synthesized with MCPA and amino-hexanoic acid or amino-butanoic acid.

以除草劑2甲4氯、氯化亞砜免费一看一毛片、氨基己酸和氨基丁酸等為起始原料极品欧美，經(jīng)兩步化學反應分別合成了兩種MCPA半抗原：6-(2-甲基-4-氯苯氧乙酰基)氨基己酸和4-(2-甲基-4-氯苯氧乙?024你懂的金沙人妻片；?氨基丁酸欧美福利1区。

New compounds of the type of N--N'-(2,4-dichlorophenyloxyacetyl)-semicarbazides were synthesized by a series of reactions of preparing organic isocyanates by Curtius rearrangement with 2,4- dichloro aryloxyacetic acid hydrazide using one-pot procedures.

以芳香取代酸為原料，用Curtius重排的方法合成異氰酸酯欧美日韩α片在线观看，直接與2人人插人人妻，4-二氯苯氧乙酰肼作用，一鍋法合成了4種N-取代芳基-N'-(2欧美男女a视频，4-二氯苯氧乙跏悠笛侵夼访廊蘸基)氨基脲類化合物。

Eight novel N,N′-naphthalene acyl substituted aromatic acylamino thiocarbamide s(Ⅱ1~Ⅱ8) were synthesized from aryl acylhydrazine and α-naphthalene acyl isothiocyanate, which was obtained by the reaction of potassium thiocyanate with α-naphthalene acyl chloride obtained from 2-naphthylacetic acid and thionyl chloride in anhydrous benzene.

通過α-萘乙酸和SOCl2在無水苯中反應制得α-萘乙酰氯www.青草草，與硫氰酸鉀反應生成α-萘乙酰基異硫氰酸酯又黄又硬又爽又舒服视频，再與芳基酰肼進行加成反應自拍偷拍激情网站，合成8種新型N，N′-萘乙蹙啪湃日饫镏挥芯?666；〈家阴０坊螂孱惢衔?Ⅱ1～Ⅱ8)102av视频在线。

Eight novel N,N′-naphthalene acyl substituted aromatic acylamino thiocarbamides(Ⅱ1~Ⅱ8) were synthesized from aryl acylhydrazine and α-naphthalene acyl isothiocyanate, which was obtained by the reaction of potassium thiocyanate with α-naphthalene acyl chloride obtained from 2-naphthylacetic acid and thionyl chloride in anhydrous benzene.

通過α-萘乙酸和SOCl2在無水苯中反應制得α-萘乙酰氯，與硫氰酸鉀反應生成α-萘乙蹙辆镣谙撸基異硫氰酸酯热热热热热热热热热热热热色色色色色色，再與芳基酰肼進行加成反應，合成8種新型N草哟哟在线，N′-萘乙豕琅夥炎耘氖悠低荆基取代芳乙酰胺基硫脲類化合物(Ⅱ1～Ⅱ8)。

Synthesis process of 2,6-dichloro-3-methylaniline was investigated 3-methylaniline was first N-acetylated with acetic anhydride,then treated with chlorosulphonic acid and ammonia yielding the 2-methyl-4--benzenesulfonic amide,which wasin turn deacetylated,chlorinated and hydrolyzed to the title compound.Hydrochloric acid was used instead of sodium hydroxide in deacetylation and sodium chlorate instead of hydrogen peroxide as oxidant in chlorination.

合成工藝2这里只有精品美女老师，6-二氯-3-甲基苯胺調(diào)查3-甲基首次N-乙酰與醋酸酐又大又黄又粗高潮免费，然后與氯磺酸和氨產(chǎn)量 2-甲基-4--苯磺酰胺基国产经典99久久不卡中国情侣，而擅轉(zhuǎn)乙酰，氯化和水解的標題compound.hydrochloric酸代替氫氧化鈉乙酰氯酸鈉代替雙氧水為氧化劑seyoyo在线观看，加氯国产一级a一片免费视频。

A process for preparingp-fluo-2-(2-methyl-3-propionyl)-4-oxy-N,3-diphenyl-phenylbutylamide includes such steps as Friedle-Craft acylating of newly prepared phenylacetyl chloride and fluorobenzene under catalysis of AlCl3 to obtain 4-fluoro-phenylbenzyl ketone, brominating at carbonyl alpha position under catalysis of less AlCl3 to obtain alpha-bromo-4-fluo-phenylbenzyl ketone, and condensing with isobutyryl acetanilide under action of sodium ethoxide.

本發(fā)明涉及一種制備對氟－2－(2－甲基－3－氧丙基)－4－氧－N，3－二苯基－苯丁酰胺(1)的方法国产一级性爱免费视频，其包括以下步驟：新制的苯乙酰氯與氟苯在AlCl3催化下進行Friedle－Craft趺拦豢╝v；磻玫綄?－氟－苯基芐基酮(4)404黄色网站点击进入；化合物(4)在少量AlCl3催化下進行羰基α位溴化毛片在线看，得到α－溴－4－氟－苯基芐基酮(5)；然后(3)異丁酰乙酰苯胺在乙醇鈉作用下與化合物(5)進行縮合欧美老妇人XXXX一区二区三区。

Furoin was synthesized from furol with VB1 as the catalyst,which was then reacted with acetyl chloride, lauroyl chloride ,benzoyl chloride,α-furoyl chloride and 3-α-furyl acryloyl chloride,respectively;corresponding monoester compounds of furoin were synthesized in THF in the presence of sodium hydroxide under reflux.

以糠醛為基礎(chǔ)原料丰满大屁股作爱免费视频，經(jīng)維生素B1催化合成糠偶姻，再由糠偶姻分別和乙酰氯日韩第一区第二区免费、月桂酰氯91popny丨九色国产、苯甲酰氯、α-呋喃甲酰氯和3-α-呋喃烯丙酰氯反應国产精品一区二区综合亚洲，在NaOH/無水THF體系中日韩成熟熟女精品自拍视频，于水浴回流條件下合成了相對應的糠偶姻單酯類化合物。

Bezaldehyde was used as protective agent in first method.S-Epichloeohydrin was aminated and acidulated to give(2S)-1-Amino-3-chloro-propanol Salts.The acetylation of (2S)-1-Amino-3-chloro-propanol by acetic anhydride produced the intermediate-N-[2--3-chloropropyl]acetamide.And then at 20℃,in the presence of lithium tert-butoxide,benzyl 3-fluoro-4-morpholinophenyl carbamate react with-N-[2--3-chloropropyl]acetamide to give linezolid in total yield of 43.6%.

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Cellulose benzoate,the degree of substitution of which was calculated from the content of C determined by element analysis,was prepared from microcrystalline celluloseand benzoyl chloride under heterogeneous condition and characterized by FT-IR and~1H-NMR.

研究了微晶纖維素和苯甲酰氯在多相條件下合成制備纖維素苯甲酸酯的反應，通過元素分析所得碳的質(zhì)量百分含量計算了產(chǎn)物的取代度视频网址国产精品入口，并系統(tǒng)研究了吡啶與N欧关一级A片欧美黑人一级A片，N-二甲基乙酰胺或與三乙胺混合反應溶劑、苯甲酰氯與纖維素羥基的摩爾比r成人午夜在线观看影院免费播放网站、反應溫度和反應時間對D S的影響国产清纯白嫩初高生在线，用FT-IR和1H-NM R對產(chǎn)物進行了表征。