三烯

Cyclohexene was synthesized by dehydration of cyclohexanol with anhydrous aluminum chloride as catalyst.

以无水三氯化铝作催化剂，对环己醇脱水制备环己烯的反应进行研究。

In this thesis, a convenient and efficient synthesis of highly functionalizeddihydropyrido[2,3-d]pyrimidines via a double [5 + 1] annulation strategy startingfrom easily available α-alkenoyl-α-carbamoyl ketene--acetals 1 and cheapreagents (NH4OAc, DMF, and POCl3) has been developed.

本论文探索了一种简便有效的合成高度官能化的二氢吡啶并[2，3-d]嘧啶的方法，此方法由易得的α-乙酰基-α-氨基乙酰基二硫缩烯酮1和便宜的试剂(醋酸铵，二甲基甲酰胺和三氯氧磷)通过两步[5 + 1]加成而实现。

Water, Beta-glucan, Ascorbic acid, Tri Sodium Ascorbyl Palmitate Phosphate, Magnesium L-ascorbyl -2-phosphate, PEG-60 hydrogenated castor oil, Lecithin, Coceth-7 / PPG-1-PEG 9 lauryl glycol ether/PEG 40 hydrogenated castor oil, DL-panthenol, Retinyl, palmitate, Anthemis Nobilis Flower extracts, Pinebark extract, Phellinus linteus extract, Phellinus linteus / Rice Ferment Extract, Onion extract, Aralia Elata Root Extract, Grape extract, Sandalwood oil, Myrtle oil, Orange oil, 1,3-Butylene glycol, Glycerin, Xanthan gum, Tocopheryl acetate, Ethanol, Methyl paraben

水， β-葡聚糖，抗坏血酸、三磷酸抗坏血酸棕榈酸酯钠、维他命 C 磷酸镁盐、聚乙二醇- 60氢化蓖麻油、卵磷脂、椰油醇聚醚-7 / PPG-1-PEG-9 月桂二醇醚/聚乙二醇40氢化蓖麻油，消旋泛酰醇，视黄醇，棕榈酸盐，白花春黄菊花提取物， Pinebark提取物，桑黄提取物，桑黄/水稻发酵提取物，洋葱提取物，辽东楤木根提取物，葡萄提取物，檀香油，桃金娘油，橙油， 1，3 -丁烯乙二醇，甘油，黄原胶，生育酚，乙醇，羟苯甲酯

Glycine Soja Oil, Vitis Vinifera Seed Oil, Pistacia Vera Seed Oil, C 12-15 Alkyl Benzoate, Caprylic/Capric Triglyceride, Prunus Amygdalus Dulcis Oil, Fragrance, Tocopheryl Acetate, Lecithin, Amyl Cinnamal, Benzyl Benzoate, Citronellol, Geraniol, Limonene, Linalool.

野生大豆油，葡萄籽油，阿月浑子种子油和c 12月15日烷基苯甲酸，辛酸/癸甘油三酯，李野枣油，香水， Tocopheryl醋酸酯，卵磷脂，戊Cinnamal ，苯甲酸苄酯，香茅醇，香叶醇，柠檬烯，芳樟醇。

Firstly, 24 chiral Schiff base ligands were prepared and evaluated for theasymmetric HDA reaction between Brassard diene with benzaldehyde. Theresults revealed that the ligand derived from 3,5-di-tert-butylsalicylaldehydewith (1R,2S)-2-amino-1,2-diphenyl-1-ethanol shows an excellent chiralinduction in the reaction.

首先合成了 24 个手性三齿席夫碱配体，并应用于 Brassard 二烯与苯甲醛的不对称 Hetero-Diels-Alder 反应，结果表明，3，5-二叔丁基水杨醛与(1R，2S)-1，2-二苯基-2-氨基-乙醇生成的单席夫碱显示出优秀的手性诱导能力。

Flavor substances of pumpkin were qualitatively analyzed and 22 kinds of chemical components were identified by GC-MS. The main compounds extracted are Bornyl acetate, Camphol and 4-methy- Phenol, respectively.

首次对南瓜(6号京银栗)进行了芳香物质的定性测定，发现南瓜中含有22种芳香性成分，主要为醋酸冰片酯、樟脑、四甲基苯酚、4，6，6-三甲基-双环[3.1.1]-3-庚烯-2-酮。

Ingredients: Rose oil, rose fruit Oil, clove flower oil, deionized water, isopropyl myristate, glycerol, propylene glycol, polyethylene glycol -400, central PDMS, poly dimethyl siloxane, PDMS alcohol, polyacrylamide, C13-14 iso-paraffin, octoic acid / capric Acid Triglyceride, lauryl alcohol -7, hydroxyethyl acrylate, acryloyldimethyltaurate copolymer, squalane, poly sorbate esters -60, PEG-20 sorbitan laurate, panthenol, allantoin, methyl p-hydroxybenzoate, diazolidiny1 urea, 3-iodo-2-propynyl-butyl-carbamate, essence.

产品成分：玫瑰精油、玫瑰果油、丁香花油、去离子水、肉豆蔻酸异丙酯、甘油、丙二醇、聚乙二醇-400、环聚二甲基硅氧烷、聚二甲基硅氧烷、聚二甲基硅氧烷醇、聚丙烯酰胺、C13-14 异链烷烃、辛酸/癸酸甘油三酯、月桂醇醚-7、羟乙基丙烯酸酯、丙烯酰二甲基牛磺酸钠聚物、角鲨烷、聚山梨酸酯类-60、PEG-20 失水山梨醇月桂酸酯、泛醇、尿囊素、对羟基苯甲酸甲酯、双咪唑烷基脲、碘代丙炔基丁基甲氨酸酯、香精。

Results Two compounds were isolated from D. diandra. Theirs structures were identified as 6-carboxymethy1-5,7,4'-trihydroxyflavone and l-O-β-D-glucopyranosyl-(2S,3R,4E,8E)-Z-N-(2'-hydroxypalmitoyl) octadecasphinga-4,8-dienine(soya cerebroside Ⅰ,Ⅱ).

结果分离并鉴定了2个化合物：6-羧甲基-5，7，4'-三羟基黄酮和4，8-N-[2'-D-羟基-十六烷酰基]-1-O-D-吡喃葡萄糖基-4，8-二烯-十八鞘氨醇。

A new chiral quaternary ammonium salt 1a was synthesized by the reaction of cinchonine and(2,4,6-)trimethyl benzyl chloride.Etherification between 1a and benzyl bromide,allyl chloride,or methyl give corresponding etherified quaternary ammonium salts 1b,1c,and 1d.

由辛可宁和2，4，6-三甲基苄氯，合成了一种新的手性季铵盐(1a)，并进一步用苄基溴、碘甲烷和烯丙基氯对分子中的羟基进行醚化，得到相转移催化剂1b、1c和1d。

The interactions of globular proteins with oppositely charged polymers can form soluble complexes, coagula, or precipitates, depending on the concentrations of protein and polymer, pH and ionic strength of aqueous solution.

论文工作的第三部分研究了在与马来酸—烯烃交替共聚物结合和解离过程中细胞色素c结构的可逆转换。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。