The cis novel bisoxazoline ligands L1-L4 have been synthesized through the treatment of new cis dihydroxy diamide with p-toluenesulfonyl chloride in the presence of catalytic quantity of 4--pyridine, and the cis dihydroxy diamide could be achieved from the condensation of the amino alcohols and cis cyclopropane dicarbonyl chloride prepared via oxidation and halogenation from cis-2,2-dimethyl-3-formylcyclopropanecarboxylate with DCC.

我們以蒈醛酸內(nèi)酯為起始原料黄色aaaa，經(jīng)過(guò)氧化反應(yīng)、酰氯化反應(yīng)得到順式環(huán)丙烷二酰氯，然后在二環(huán)己基碳二亞胺的催化下與相應(yīng)的氨基醇反應(yīng)合成了順式二羥基酰胺，再用對(duì)甲苯磺酰氯將羥基活化免费三级性毛毛片，最后在二甲氨基吡啶的催化下關(guān)環(huán)合成順式雙噁唑啉配體L1～L4。

GC/MS analysis on the leaf oil indicated that the main components with a relative content of ≥3% were alloocimene (43.22%),α-pinene (13.63%),γ-terpinene (5.49%),-3, 7-dimethyl-, 2, 6-octadien-1-ol (3.58%),β-fenchyl alcohol (4.58%), and 2-amino-3, 5-dicyano-6-(4-methoxyphenoxy)-pyridine (3.67%).

用GC/MS聯(lián)用方法www.好了av.com，對(duì)巨尾桉揮發(fā)油進(jìn)行鑒定亚洲国产男男女女AV网址在线播放，相對(duì)百分含量在3%以上的化合物有：α-蒎烯(13.63%)、別羅勒烯(43.22%)精品日本欧美、γ-萜品烯(5.49%)、3你懂得在线免费观看网站，7-二甲基－2国产www，6-辛二烯醇(3.58%)、β-小茴香醇(4.58%)和2-氨基－3人成777777免费视频色，5-二氰基-6-（4-甲氧基苯氧基）－吡啶(3.67%)国产在线91精品观看1024。

It manufactures heterocyclic, such as pyrazine, thiazole, furan, pyridine and sulf-compounds with their ramifications; and pharmaceutical intermediates such as veratraldehyde, isovanillin, sufurol, diacetyl, acetoin, and 2, 5-dimethyl pyrazine.

食用產(chǎn)品有吡嗪、噻唑91华人精品自拍、呋喃永久免费黄色,、吡啶等雜環(huán)系列及含硫系列的合成香料化合物。醫(yī)藥中間體產(chǎn)品有：藜蘆醛又粗又长又硬的裸交视频、異香蘭素北方久久av、硫噻唑、丁二酮18岁黄网、乙偶姻欧美性爱视频在线观看精品、2，5-二甲基吡嗪等免费国产自在线拍。

dimethyl quinoline：二甲基喹啉

dimethyl pyridine 二甲基吡啶 | dimethyl quinoline 二甲基喹啉 | dimethyl silane 二甲基甲硅烷

dimethyl sulfate：硫酸二甲酯

4VP含量在25~75 mol%之丙烯酸酯-4吡啶共聚合物Poly(AM-co-4VP),其四級(jí)銨鹽化是透過(guò)將適當(dāng)量的共聚合物在室溫下加入甲醇與甘油的混合液體內(nèi)攪拌,接著加入大于5倍pyridine量的四級(jí)銨化劑:硫酸二甲酯(dimethyl sulfate),在室溫下中和反應(yīng)11小時(shí),

Dimethyl pyrazole：促果肥

dimethyl propane 二甲基丙烷 | Dimethyl pyrazole 促果肥 | dimethyl pyridine 二甲基吡啶