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They were eucalyptol, bicyclo[2.2.1]heptan-2-one,1,7,7-trimethyl-,(1R)-, borneol, 1-methyl-2-(1-methyl ethenyl)-(1R-cis)-cyclobutaneethanol, limonene, 1-hydroxymethyl-7,7-dimethy lbicyclo[2.2.1]heptan-2-one,-spathulenol, 3,7,11,15-Tetramethyl-2-hexadecen-1-ol, isocitronellol,-9-Octadecenoic acid, heneicosane, respectively.

阿给中共有11个阿给炭没有检测出的成分,包括桉油精、D-樟脑、冰片、(1R-cis)- 1-甲基-2-(1-甲基乙烯基)环丁基乙醇、二戊烯、1-羟甲基-7,7-二甲基-双环[2.2.1]庚-2-酮、-匙叶桉油烯醇、3,7,11,15-四甲基-2-十六碳烯-1-醇、异香茅醇、-9-十八碳烯酸和廿一烷。

A Theoretical Study on the Reaction Mechanism of Epoxidation Reaction of the 4- Bicyclo

CEPS 思博网--文章书目;-1页数:7 需求点数:28 电子全文:请登入。篇名(4-溴甲基双环[4.4.1]-1,3,5,7,9-十一碳五烯基-3-)甲醇环氧化反应机理的理论研究

The results showed that:1 78 volatile constituents were identified in the oil,which were mainly caryophyllene,1,5,9,9-tetramethyl-1,4,7-cycloundecatriene,germacrone,eudesmol and furfural,etc.2 The aroma quality and intensity of cigarette were improved,irritation was reduced,and a...

结果表明:①满山红挥发油中共鉴定出78种挥发性成分,主要有石竹烯、1,5,9,9四甲基-1,4,7环十一碳三烯、杜鹃酮、桉叶醇和糠醛等;②该挥发油具有提高B2F和C3F等香气质和香气量,降低刺激性和改善余味的作用。

SM6 and SM7 of uncrystal were analyzed through GC-MS, the results showedthat SM6 main contained unsaturated fatty aldehyde with fragrance, i.e.-2,4-decadienal(58%), tetradecanoic acid (55.78%), 2-decenal(50%), Phthalic acid isobutylundecyl ester(47%), 2, 4-Decadienal(41%), 2-Undecenal (31%), 2-Methyl-Z,Z-3, 13-octadecadi-enol(18.84%), and SM7 contained saturation alkanes, i.e. 1, 2-Benzenedicarboxylic acid, butyl cyclohexyl ester(23.90%), Triacontane(22.63%),Nonacosane(21.04%), Heptadecane(18.84%), Octacosane(13.58%). Toxicological experiments were done to insure the pigment safety.

并对紫红丝膜菌色素非晶体部分的黄色油状物SM6和紫色粉末物SM7作了GC-MS分析,结果显示SM6中主要为具有香气成分的不饱和脂肪醛,其中含量较高的依次为:-2,4-癸二烯醛(58%)、十四烷酸(55.78%)、2-癸烯醛(50%)、邻苯二甲酸异丁基十一烷酯(47%)、2,4-癸二烯(41%)、2-十一碳烯醛(31%)、2-甲基-Z,Z-3,13-十八碳二烯酸(18.45%)等;SM7中主要为饱和直链烷烃,其中含量较高的依次为:1,2-苯二羧酸丁基环己酯(23.90%)、三十烷(22.63%)、二十九烷(21.04%)、十七烷(18.84%)、二十八烷(13.58%)。

Based on the results of 1H-NMR, 13C-NMR, ESI-MS and UV spectra, the structures of three compounds with antitumor activity were identified as Prodigiosin、7-Hexadecenoic acid、7,10-Octadecadienoic acid, respectively; another compounds (no activity to above tumor cells)was identified as Myristic acid.

运用核磁共振(1H-NMR、13C-NMR)、质谱、紫外光谱等现代波谱技术分析,将其中3种具有抗肿瘤活性的化合物分别鉴定为灵菌红素、7-十六碳烯酸(7-Hexadecenoic acid)、7,10-十八碳二烯酸(7,10-Octadecadienoic acid);鉴定另一种对上述肿瘤细胞无活性的化合物为肉豆蔻酸。

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。

Itis main raw material of tetradecane,others applications include:liquid mosquito-repellent incense,hydraulic oil of large-scale punch,paraffin chloride,anticorrosive paint.powder paint,and top-grade melt adhesive,its derivative is chainpoly-anhydride of 14c binary acid,it is very useful chenical and medical intermediate,it can be used ad curing agent of epoxy and propylene resin,polyester improved additive etc.

外观与性状无色液体,溶解性不溶于水,可混溶于乙醇、乙醚是生产十四碳烷烃的主要原料,其它应用包括:液体蚊香、大型冲压机的液压油、氯化石蜡、防腐涂料、粉末涂料也可用作高档热熔胶,其衍生产品十四碳二元酸的直链聚酐,是一种非常有用的化工及医药中间体,可用于环氧及丙烯树脂固化剂、聚酯改性添加剂等等。

Comparison was synthesized from undecylenic acid and iso-propyl alcohol over HPWA-SBA-15. Comparison was made among different catalysts, and influence of composition and repeated use of the catalyst were investigated.

将该催化剂用於催化以十一碳烯与异丙醇为原料合成十一碳烯酸异丙酯,进行了不同催化剂化剂的对比实验以及催化剂组成和重复使用的考察。

The synthesis of tetracosene by dimerizing tetrapropylene with waterless AlCl 3 and a complexant as catalyst was studied.

报道了一种以无水AlCl3 和络合剂制备的络合物催化剂,用于四聚丙烯二聚合成二十四碳烯,它与无水AlCl3 单独作催化剂相比,催化剂活性大大提高。

Expert knowledge: deep sea fish oil to deep-sea salmon as raw material derived, is rich in OMEGA-3 (Omega -3) fatty acids, which is a kind of polyunsaturated fatty acids, including eicosapentaenoic acid, docosahexaenoic acid and linolenic acid, can effectively regulate blood lipids, promote health.

专家常识:深海鱼油以深海三文鱼为原料提炼而成,含丰富的OMEGA-3(奥米加-3)脂肪酸,它是一种多元不饱和脂肪酸,包括二十碳五烯酸、二十二碳六烯酸及亚麻酸,能有效调节血脂、促进健康。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

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