烯基

By means of GC, GC-MS, GC-IR, IR, H1-NMR,the reaction products were investigated and the results showed that there are camphene, limoneneN terpinolene, Me a -fenchyl ether, Me -terpinyl ether, Me bornyl ether and Me isobornyl ether containing in the products,and the content of the main product Me a -terpinyl ether is up to 42.5%,the selectivity is 44.7%.

采用GC、GC-IR、GC-MS、IR、H~1-NMR等对反应产物进行定量和定性分析，结果表明：微波辐射下α-蒎烯与甲醇的反应产物含有莰烯、柠檬烯、α-小茴香甲醚、异松油烯、异菠基甲醚、菠基甲醚、α-松油基甲醚等，在较好的工艺条件下，主产物α-松油基甲醚的得率为42.5％，选择性为44.7％。

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。

The invention provides a method for homopolymerizing conjugated dialkene or co-polymerizing conjugated dialkene and monovinyl aromatic hydrocarbon. The method comprises the following steps: the conjugated dialkene is homopolymerized or the conjugated dialkene and the monvinyl aromatic hydrocarbon are co-polymerized randomly. The method is characterized in that at least one alkali metal alkoxide compound expressed by the formula is used as a structure regulator; in the formula, R is linear chain or branched chain alkylidene radical having 1 to 10 carbon atoms; M is alkali metal selected from Li, Na, K, Rb and Cs.

本发明提供了一种使共轭二烯烃均聚或者使共轭二烯烃与单乙烯基芳烃共聚的方法，包括在阴离子聚合条件下使共轭二烯烃进行均聚或者使共轭二烯烃与单乙烯基芳烃进行无规共聚，其特征在于采用至少一种式所示的碱金属醇盐化合物作为结构调节剂，其中R为具有1-10碳原子的直链或支链亚烷基；以及M为选自Li、Na、K、Rb和Cs的碱金属。

Three new ferrocenylmethyl-substituted indenes and cyclopentadienes were synthesized by the addition of hydrogen anion and carbon anion to fulvene and benzo fulvene respectively, moreover, their structures were characterized by NMR and MS.

本文以二茂铁基富烯和二茂铁基苯并富烯为前体，通过负氢和负碳对双键的加成，合成了3个新型的二茂铁基甲基取代的茚及环戊二烯，并对其结构进行了核磁及质谱表征。

The results of AD reactions are as follows:(1) When the AD reaction of eight olefins was performed at 0.5mo1% OsO〓 and 2mol% ligand 8 in PEG/NMO system, the diols were obtained in 78～90% yields and 78～96% ees (except for trans-5-decene and ally naphthyl ether).

催化结果如下：(1)在PEG/NMO体系中，将配体8用于八种烯烃的AD反应，配体、OsO〓和底物的摩尔比为0.02/0.005/1时，化学产率为78～90％，除反式-5-癸烯和萘基烯丙基醚较低外，其它六种烯烃的相应二醇产物的ee值为78～96％。

Generally, these compounds are derived from accessible α–oxoketen dithioacetals and the common methods of preparation involve regioselective sodium borohydride 1,2-reduce of α–oxoketen dithioacetals, 1,2-nucleophilic addition of organomatals such as organomagnesium, organolithium, Reformatsky regent to α–oxoketen dithioacetals, Baylis-Hillman reaction between polarized ketene dithioacetals and aldehydes.

主要方法包括：使用硼氢化钠1，2-选择性还原α-羰基二硫缩烯酮；利用有机金属化合物（如有机镁试剂，有机锂试剂，Reformatsky试剂等）对α-羰基二硫缩烯酮进行1，2-亲核加成；通过α-羰基二硫缩烯酮与芳醛进行Baylis-Hillman反应等获得。

Part Ⅱ: The evelopropanation reactions of both semi-stabilized telluronium and arsoniumylides with α,β--unsaturated ketones proceed smoothly.

第二部分：烯丙基、巴豆基、三甲基硅基烯丙基、肉桂基、苄基碲、胂两种叶立德与α，β-不饱和酮均可以成功地进行环丙烷化反应，并且表现出不同的立体选择性。

Allyl-functional novolac with allylation degree of 173 % was synthesized , followed by copolymerizing with 4 , 42bismaleimide biphenyl methane at a mass ratio of 1∶1 to obtain BMI2modified allyl-functional novolac (BMAN173) resin.

制备了烯丙基化程度可达 173 %的烯丙基酚醛树脂(AN173)，并与双马来酰亚胺以 1 ∶1 的质量比进行共聚，制备了双马改性的烯丙基酚醛树脂(BMAN173)。

The effect of impurities in DMDAAC monomer solution, such as NaCl, allyl chloride, allyl alcohol, allyl aldehyde, active carbon, low molecular polymer of DMDAAC, yellow residua, Fe~(3+), Fe~(2+), Cu~(2+), on the polymerization reactivity of preparing PDA with 30％cationicty was researched in this paper.

本文研究了二甲基二烯丙基氯化铵单体溶液中氯化钠、烯丙基氯、烯丙醇、烯丙醛、活性炭、低分子聚合物、黄色物质、Fe~(3+)、Fe~(2+)、Cu~(2+)等杂质对合成阳离子度为30％PDA的聚合反应性能的影响。

By the bio-assay directed fractionation of the volative constituents.dimethyl disulfide,allyl methyl trisulfide,allyl methyl sulfide and diallyl disulfide were found to increase the beating rate and beating amplitude in a standard medium,but the compund 2-pentanone without sulfide did not affect either of them.

从具有生物活性的挥发性提取物中分离得到的二甲基二硫、烯丙基甲基三硫、烯丙基甲基硫醚和二烯丙基二硫对培养心肌细胞心率和振幅均有不同程度的增强作用，而不含硫的2-戊酮则没有作用。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。