芳基取代丙烯腈为骨架的芪类化合物的合成

对合成结构较简单的4种以芳基取代丙烯腈为骨架的芪类化合物的常用合成方法进行了研究。以取代苯甲醛和取代苯乙腈为原料,在氮气保护、甲醇钠作催化剂等条件下,通过一步缩合反应,高收率得到(Z)-2-(3,4-二甲氧苯基)-3-(4-甲氧苯基)丙烯腈(Ⅰ)、(Z)-2-(3,4-二甲氧苯基)-3-(3,4-二甲氧苯基)丙烯腈(Ⅱ)、(Z)-2-(3,4-二甲氧苯基)-3-(4-二甲氨基苯基)丙烯腈(Ⅲ)、(Z)-3-(3,5-二甲氧苯基)-2-(4-甲氧苯基)丙烯腈(Ⅳ),实测收率分别为98.3%、96.0%、83.4%及88.8%。     

1H-咪唑并[4,5-c]喹啉衍生物的合成

以1-(2-甲基丙基)-4-氯-1H-咪唑并[4,5-c]喹啉(Ⅰ)为原料与哌啶反应合成了1-(2-甲基丙基)-4-[哌啶-1-基]-1H-咪唑并[4,5-c]喹啉(Ⅱ),当用甲苯为溶剂,n(Ⅰ)∶n(哌啶)∶n(K2CO3)=1∶2∶0.3时,Ⅱ的收率为88.5%;Ⅰ与三倍过量的吗啉反应合成1-(2-甲基丙基)-4-[吗啉-4-基]-1H-咪唑并[4,5-c]喹啉(Ⅲ),收率86.5%;Ⅰ与三倍过量的哌嗪在体积分数50%的1,4-二氧六环水溶液中反应合成1-(2-甲基丙基)-4-[哌嗪-1-基]-1H-咪唑并[4,5-c]喹啉(Ⅳ),收率59%。Ⅱ、Ⅲ、Ⅳ的合成工艺均较简单。     

Synthesis of Ester Based Cationic Pyridinium Gemini Surfactants and Appraisal of Their Surface Active Properties

New pyridinium gemini surfactants have been synthesized by esterification of halogenated carboxylic acids with long chain fatty alcohols furnishing respective esters (dodecyl-2-chloroacetate, tetradecyl-2-chloroacetate, hexadecyl-2-chloroacetate, dodecyl-2-bromoacetate, tetradecyl-2-bromoacetate and hexadecyl-2-bromoacetate) followed by their subsequent treatment with 4,4′-trimethylene dipyridine resulting in the formation of title Gemini surfactants: 4,4′-(propane-1,3-diyl)bis1-{2-(dodecyloxy)-2-oxoethyl}; 4,4′-(propane-1,3-diyl)bis{1-(2-(tetradecyloxy)-2-oxoethyl}; 4,4′-(propane-1,3-diyl)bis{1-(2-(hexadecyloxy)-2-oxoethyl} dipyridinium chlorides; 4,4′-(propane-1,3-diyl)bis{1-(2-(dodecyloxy)-2-oxoethyl}; 4,4′-(propane-1,3-diyl)bis{1-(2-(tetradecyloxy)-2-oxoethyl} and 4,4′-(propane-1,3-diyl)bis{1-(2-(hexadecyloxy)-2-oxoethyl} dipyridinium bromides. Their identifications are based on IR, ¹H-NMR, ¹³C-NMR, DEPT, COSY and Mass spectral studies. Their surface active properties were also evaluated on the basis of surface tension and conductivity measurements.     

几种α-乙酰氨基芳香丙烯酸类衍生物的合成方法研究

以乙酰甘氨酸和苯甲醛及其衍生物为原料,合成一系列含C=C双键的α-乙酰氨基衍生物：（Z）-2-乙酰氨基-3-苯基丙烯酸、（Z）-2-乙酰氨基-3-（4-氯苯基）丙烯酸、（Z）-2-乙酰氨基-3-（4-硝基苯基）丙烯酸、（Z）-2-乙酰氨基-3-（2-萘基）丙烯酸。各产物的结构均经NMR、MS确证,反应路线简单可行。     

沙美特罗的合成

以对羟基苯基丙烯酸为原料,通过羟甲基化得到3-羟甲基-4-羟基苯基丙烯酸,然后对3-羟甲基-4羟基-苯基丙烯酸的双键加成上羟基,再把羧酸还原成醛基,然后与4-苯氧丁基己胺缩合得到亚胺,加氢还原得到目标产物。     

氟噻草胺的合成

改进了除草剂氟噻草胺的合成方法。以肼基二硫代甲酸甲酯、三氟乙酸为原料合成2-甲砜基-5-三氟甲基-1,3,4-噻二唑(4),反应收率81.5%;以对氟硝基苯、丙酮经过催化加氢、酰化、醇解合成N-(4-氟苯基)-N-异丙基-2-羟甲基乙酰胺(8)。化合物(4)与(8)反应合成氟噻草胺,得率94.2%。改进后的工艺反应条件温和,三废少,产品纯度和收率高。     

一种非索非那定关键中间体的合成研究

以4-（4-氯丁酰基）-α,α-二甲基苯乙酸甲酯（5）为原料,与4-氰基哌啶（4）缩合,再与二苯甲酮（2）反应得到了2-[4-[4-[4-（羟基二苯甲基）-1-哌啶基]-1-氧代丁基]苯基]-2,2-二甲基乙酸甲酯（1）,总收率约79％。该工艺反应条件温和,副反应少,易于操作,是一条适于工业化生产的合成路线。     

Synthesis of epothilone analogues by antibody-catalyzed resolution of thiazole aldol synthons on a multigram scale. Biological consequences of C-13 alkylation of epothilones

Three monoclonal aldolase antibodies (84G3, 85H6, and 93F3), generated against a beta-diketone hapten (II) by the reactive immunization technique, catalyzed highly enantioselective retro-aldol reactions of the racemic thiazole aldols 13-20. Antibody 84G3 (0.0004-0.005 mol%) was used to resolve (+/-)-13-(+/-)-18 to afford compounds 13-18 in multigram quantities. Multiple 13-alkyl analogues of epothilone (7-12) and their trans isomers ((E)-7-(E)-12) were synthesized starting from thiazole aldols 13-18. Construction of the trisubstituted olefin moiety in compounds 7-12 and (E)-7-(E)-12 was catalyzed by Grubbs' catalyst (X). Initial biological testing with compounds 7-10 and their trans isomers showed that compounds 9, 10, and (E)-10 have appreciable tubulin polymerization and antiproliferative activities that approached those of epothilone C. The most active compound, (E)-9, even displayed potencies comparable to those observed for epothilones A and D. Interestingly, all trans analogues were more potent than their corresponding cis isomers. While introduction of an alkyl group at C-13 in the cis series led to an overall reduction in biological activity (compared to epothilone C), appropriate modification of the thiazole moiety (replacement of the 2-methyl substituent by a 2-methylthio group) was able to compensate for this loss. These results are encouraging in view of the expectation that epoxidations of these compounds should further increase their cellular activities. Thus, compounds 9, 10, and (E)-9 and (E)-10 represent highly promising candidates for further studies.     

阿达帕林的合成工艺研究

以1-金刚烷醇、4～溴苯酚为原料,在浓硫酸催化下制得2-（1-金刚烷基）-4-溴苯酚,产物再用硫酸二甲酯甲基化得到2-（1-金刚烷基）-4-溴苯甲醚,2-（1-金刚烷基）～4-溴苯甲醚的格氏化产物再与6-溴-2-萘甲酸甲酯反应,制得6～[3-（1-金刚烷基）-4-甲氧基苯基]-2-萘甲酸甲酯,该产品在氢氧化钠作用下皂化...     

Efficient synthesis of functionalized bis-(4-oxo-1,3-thiazolan-5-ylidene)acetates

Reaction of 1-(2,2-dimethyl-propionyl)-3-{4-[3-(2,2-dimethyl-propionyl)thioureido]phenyl}thiourea or 1-(2,2-dimethyl-propionyl)-3-{5-[3-(2,2-dimethyl-propionyl)thioureido]naphthalen-1-yl}thiourea with dialkyl acetylenedicarboxylates in CH₂Cl₂ leads to alkyl (2-(2,2-dimethyl-propionylimino)-3-{4-[-(,2-dimethyl-propionylimino)-5-alkoxycarbonylmethylene-4-oxo-thiazolidin-3-yl]-phenyl}-4- oxo-thiazolidin-5-ylidene)acetates or alkyl (2-(2,2-dimethyl-propionylimino)-3-{5-[2-(2,2-dimethyl-propionylimino)-5-alkoxycarbonylmethylene-4-oxo-thiazolidin-3-yl]naphthalen-1-yl}-4-oxo-thiazo lidin-5-ylidene)acetates in good yields.     

Synthesis and spectral evaluation of some unsymmetrical mesoporphyrinic complexes

Synthesis and spectral evaluation of new zinc and copper unsymmetrical mesoporphyrinic complexes are reported. Zn(II)-5-(4-acetoxy-3-methoxyphenyl)-10,15,20- tris-(4-carboxymethylphenyl)porphyrin, Zn(II)-5-[(3,4-methylenedioxy)phenyl]-10,15,20- tris-(4-carboxymethylphenyl)porphyrin, Cu(II)-5-(4-acetoxy-3-methoxyphenyl)-10,15,20- tris-(4-carboxymethylphenyl)porphyrin and Cu(II)-5-[(3,4-methylenedioxy)phenyl]-10,15,20- tris-(4-carboxymethylphenyl)porphyrin were synthesized using microwave-assisted synthesis. The complexes were characterized by elemental analysis, FT-IR, UV-Vis, EPR and NMR spectroscopy, which fully confirmed their structure. The spectral absorption properties of the porphyrinic complexes were studied in solvents with different polarities. Fluorescence emission and singlet oxygen formation quantum yields were evaluated for the compounds under study, revealing high yields for the zinc derivatives. The copper complexes are not emissive and only display residual capacity for singlet oxygen formation.     

硫酸氢氯吡格雷合成工艺研究

以消旋的邻氯苯甘氨酸为原料,经酯化、光学拆分得到（＋）-邻氯苯甘氨酸甲酯,与对甲苯磺酸-2-噻吩乙酯缩合制得氯吡格雷关键中间体（S）-2-（2-噻吩乙胺基）-（2-氯苯基）乙酸甲酯,然后在无水甲酸和多聚甲醛中环合反应得到硫酸氢氯吡格雷。该合成方法具有原料价廉易得、反应条件温和、收率较高,产品质量好的特点,适合于工业化。     

手性烯唑醇为活性组分的杀菌聚合物的合成

以杀菌剂烯唑醇（Ⅰ）为底物，（-）-孟氧基乙酸为拆分试剂进行手性拆分，得到具有高杀菌活性的（R）-（E）-1-（2，4-二氯苯基）-2-（1，2，4-三唑-1-基）-4，4-二甲基-1-戊烯-3-醇（Ⅱ）。Ⅱ与丙烯酰氯反应生成了具有生物活性的可聚合单体（R）-（E）-1-（2，4-二氯苯基）-2-（1，2，4-三唑-1-基）-4，4-二甲基-1-戊烯-3-醇丙烯酸酯（Ⅲ），Ⅲ经自聚或与丙烯酸或甲基丙烯酸甲酯共聚制得了杀菌聚合物（Ⅳ，Ⅴ，Ⅵ），并进行聚合物活性组分的水解释放实验。总体上，在碱性介质中聚合物的活性组分水解释放速率大于在中性或弱酸性介质中的。Ⅳ和Ⅵ活性组分水解释放速率很低，而聚合物Ⅴ，随时间的延长，有大量的活性组分释出，初始释出质量浓度也较高，符合农用杀菌剂的速效性和持效性的要求，有实用意义。     

Cooperative enhancement of two-photon absorption based on electron coupling in triphenylamine-branching chromophore

Two novel, triphenylamine derivatives N-(4-(4-(diphenylamino)styryl)phenyl)acetamide and N-(4-(4-(bis-(4-(4-(diphenyl-amino)styryl)phenyl)amino)styryl)phenyl)acetamide were synthesized. The two-photon absorption of N-(4-(4-(bis-(4-(4-(diphenyl-amino)styryl)phenyl)amino)styryl)phenyl) was 17-fold greater relative to N-(4-(4-(diphenylamino)styryl)phenyl)acetamide. Linear absorption spectra, steady-fluorescence and time-resolved fluorescence spectra revealed that electron coupling originating from π-electron delocalization is responsible for the strong cooperative enhancement of TPA within the compounds. This is confirmed by the Lippert-Mataga equation.     

几种手性α-乙酰氨基-β-芳基丙烯酸类化合物的合成

以乙酰甘氨酸和苯甲醛及其衍生物为原料，合成了一系列含碳碳双键的前手性底物，（Z）－2－乙酰氨基苯丙烯酸，（Z）－2－乙酰氨基－3－（对甲氧苯基）－丙烯酸，（Z）－2－乙酰氨基－3－（对氯苯基）－丙烯酸，（Z）－2－乙酰氨基－3－（间氯苯基）－丙烯酸，（Z）－2－乙酰氨基－3－（间硝基苯基）－丙烯酸。后4种是新的有机化合物，产物结构经过核磁共振，质谱分析确证。     

一类核苷类似物关键中间体的合成

对一类核苷类似物的关键中间体———(4R,5R) 4 (N 甲基羟氨基) 5 [(叔丁基二苯基硅烷基)氧甲基] 3,4 二氢 2(5H) 呋喃酮的合成进行了研究。以L 抗坏血酸为原料,经Pd/C催化加氢和缩酮保护,生成5,6 O 异亚丙基 L 古洛糖酸 1,4 内酯,产率74 3%。该内酯经NaIO4氧化、Wittig反应、水解成环和柱色谱分离,得(R) (+) 5 羟甲基 2 (5H) 呋喃酮,产率43 0%。最后该呋喃酮再经硅烷保护和羟胺Michael加成,即得到目标化合物。这7步反应的总产率27 9%。     

A Comparative Study of the Potent Odorants of Different Virgin Olive Oils

The flavour of virgin olive oil was investigated by means of an aroma extract dilution analysis. A comparative study of four oil samples differing in the flavour, indicated that the following odorants were mainly responsible for the odour notes given in brackets: (Z)-3-hexenol, hexanal, (E)-2-hexenal and (Z)-3-hexenal (green), ethyl 2-methylbutyrate, (Z)-3-hexenyl acetate and ethyl cyclohexanoate (fruity), (E,E)-2,4-decadienal, (E)- and (Z)-2-nonenal (fatty) and 4-methoxy-2-methyl-2-butanethiol (black currant-like).     

Synthesis,Characterization, Physico-Chemical and DFT Studies of Potential Organic NLO Materials: Experimental and Theoretical Combined Study

Silicon - 1-(2,4-difluorobenzyl)-2-(2,4-difluorophenyl)-6-methyl-1H-benzo[d]imidazole(1) and 1-(3-(tri fluoromethyl)benzyl)2-(4-(trifluoromethyl)phenyl)-6-methyl-1H-benzo[d]imidazole (2) were...     

头孢地尼活性新酯的合成

去甲氨噻肟乙酯经过缩合,再与二硫化二苯并噻唑经缩合反应得到头孢地尼活性新酯,总收率为118%。     

嘧菌酯的合成

报道了合成高效杀菌剂嘧菌酯(1)的方法。首先以邻羟基苯乙酸(2)为原料与原甲酸三甲酯在醋酐中反应制备3-(α-甲氧基)-亚甲基苯并呋喃-2(3氢)-酮(4),收率59%;化合物4再与甲醇钠、4,6-二氯嘧啶在四氢呋喃中反应得到(E)-2-[2-(6-氯嘧啶-4-基氧基)苯基]-3-甲氧基丙烯酸甲酯(6),收率60%;化合物6与水杨腈反应得到嘧菌酯(1),收率81%。总收率28.6%。