杀菌防霉涂料

具有良好的防UV褪色性的题述组合物,含有环庚三烯酚酮金属配合物。含10％4-异丙基环庚三烯酚酮锌配合物(由4-异丙基环庚三烯酚酮钠盐和氯化锌制得)的一种丙烯酸乳液具有良好的防霉性,在UV照射下具有良好的抗褪色性。     

环庚三烯酚酮的合成

以环戊二烯和二氯乙酰氯为原料,应用2+2加成、扩环反应生成了环庚三烯酚酮。此方法工艺路线较简捷,产率71%,纯度为99.00%以上。     

相关中国专利

专利名称:一种-突厥酮的合成方法β-专利申请号:200910197780.2公开号:CN101698636A申请日:2009.10.28公开日:2010.04.28申请人:上海应用技术学院;上海香料研究所本发明公开了一种β-突厥酮的合成方法,分三步,即环香叶酸乙酯与烯丙基氯化镁进行格氏反应制得2,6,6-三甲基-1-(4-羟基-庚-1,6-二烯-4-基)-环己-1-烯,然后进行分解,得到2,6,6-三甲基-1-(丁-3-烯酰)-环己-1-烯,最后将此产物进行异构反应得β-突厥酮。     

环庚三烯酮及环庚三烯并咪唑类化合物的合成研究

具有非线性光学效应的有机材料因其在新型光电材料及光子材料方面的潜在应用而引起了广泛的研究兴趣,环庚三烯并咪唑类化合物是一类潜在的性能优异的非线性光学材料。本文综述了环庚三烯并咪唑类及其重要中间体环庚三烯酮类化合物的合成方法。     

日本扁柏木油中酸性油的分离

日本扁柏木油中酸性油的分离日本专利ＪＰ０５，１０５，８９８报道了一种从日本扁柏木油中分离酸性油的方法：用非晶形硅酸重金属盐对日本扁柏木油进行处理，选择性吸附其中含酸性油的４－异丙基环庚二烯酚酮，然后用较低的醇类萃取此酸性油。这种经酸性油浸溃过的吸附剂...     

重氮化合物的合成方法

重氮化合物是重要的高活性有机合成中间体,可用来制备烯酮、环丙烷和三元杂环衍生物、环庚三烯衍生物、叶立德、金属卡宾、酮和偶氮类化合物等.因此,广泛应用于有机合成化学、药物合成化学和农用化学品的合成,其合成方法和应用也都得到了很大发展.目前合成重氮化合物的方法主要分为重氮转移法、其他官能团的重氮化法和重氮化合物的修饰法3种...     

新型选择性溴化剂——四溴环酮

一百年以前,Benedikt合成了四溴环酮。但一直到1971年,Calo等人将四溴环酮用于酚类化物的选择性溴化,才引起人们的注意。经过最近几年的探索,逐渐发现四溴环酮在有机合成上有着非常广阔的用途。它不但可以用作酚、芳胺、烯和多烯、不饱和醇、不饱和酮、甾体、含氮杂环等化合物的新型选择性溴化剂,还可用作含硫化物和某些金属化物的氧化剂以及一些聚合     

桧木醇的合成新工艺研究

以环戊二烯在金属钠作用下与异丙基溴发生烷基化反应得到1-异丙基环戊二烯,然后在二氯乙酰氯发生加成反应得到7,7-二氯-3-异丙基-双环[3,2,0]庚-2-烯-6-酮,最后发生扩环反应得到桧木醇。     

孔雀草精油成分及其抑菌效果研究

针对观赏植物孔雀草应用范围窄,缺少深加工途径,经济附加值低的问题,通过蒸馏法提取其精油,并通过气质联用仪对精油组成进行了分析,鉴定出81种物质,占总峰面积的86.6%,大部分为萜类物质。精油主要成分为萜品油烯、3-甲基-6-(1-甲基乙亚基)环己-2-烯-1-酮、右旋柠檬烯、反式-β-罗勒烯、(Z)-罗勒烯酮、(E)-罗勒烯酮、石竹烯、胡椒酮,物质组成表明孔雀草精油具有增香、抑菌能力。利用菌落计数法验证了孔雀草精油的抑菌能力,结果表明孔雀草精油对埃希氏大肠杆菌、金黄色葡萄球菌及伤寒沙门氏菌生长有抑制作用。     

乌饭树叶挥发油的GC-MS分析

对乌饭树(Vaccinium bracteatum Thunb.)叶挥发油进行了 GC-MS 分析,分离得到 65 个色谱峰,从中鉴定出 49 种成分,占挥发油相对含量的 91.94%。主要成分为萜类 54.75%、开链烷烃 6.93%、环烷烃 20.13%、烯烃 0.60%、芳香烃 1.60%、醇酚醚 3.39%、醛和酮 2.14%、酯 1.15%、杂环 0.47%、胺 0.78%。在萜类中含量最高的有:橙花叔醇 20.01%、(Z,Z,Z)-1,5,9,9-四甲基-1,4,7-环十一碳三烯 17.99%、石竹烯 9.59%。分析表明,乌饭树叶挥发油中含有12种目前已经工业化生产的香精,有5种成分具有驱虫和抑菌作用。     

Biomimetic Formation of 2‐Tropolones by Dioxygenase‐Catalysed Ring Expansion of Substituted 2,4‐Cyclohexadienones

Substituted 2‐tropolone natural products are found in plants and fungi. Their biosynthesis is thought to occur by ring expansion from a cyclohexadienone precursor, but this reaction has not previously been demonstrated experimentally. Treatment of 6‐hydroxy‐6‐hydroxymethylcyclohexa‐2,4‐dienone with the non‐haem iron(II)‐dependent extradiol catechol dioxygenase MhpB from Escherichia coli results in the formation of the 2‐tropolone ring‐expansion product through a pinacol‐type rearrangement. Three further substituted cyclohexa‐2,4‐dienone analogues were prepared, and treatment of each analogue was found to give the substituted 2‐tropolone ring‐expansion product. This ring expansion could also be effected nonenzymatically by treatment with 1,4,7‐triazacyclononane and FeCl₂. This is a novel transformation for non‐haem iron‐dependent enzymes, and this is the first experimental demonstration of the proposed ring‐expansion reaction in tropolone biosynthesis.     

9种植物提取物对植物病原真菌的生物活性筛选

以苹果腐烂病菌、小麦赤霉病菌、苹果轮纹病菌、棉花枯萎病菌、柑橘炭疽病菌和黄瓜枯萎病菌为供试菌种。采用菌丝生长速率法测定了9种植物乙醇提取物对6种植物病原真菌的抑制作用,结果表明,浓度为5mg/mL时,荆条花乙醇提取物对6种植物病原真菌均有一定程度的抑制作用,其中对苹果腐烂病菌、棉花枯萎病菌、苹果轮纹病菌和黄瓜枯萎病菌的抑菌率分别为91.07%、72.97%、64.54%和63.20%。采用抑制孢子萌发法测定了9种植物乙醇提取物对2种植物病原真菌的抑制作用,结果表明,浓度为20mg/mL时,雪松叶和仙鹤草叶乙醇提取物对黄瓜枯萎病菌和柑橘炭疽病菌的孢子抑制率为100%。     

合成氨装置电导率监测仪典型故障及处理

介绍合成氨装置冷凝液电导率监测仪的典型故障和现象，从故障现象分析、现场仪表和DCS间的通信应用及故障处理方法等方面进行剖析，阐述现场分析仪表的典型故障处理经验。     

张集选煤厂煤泥水处理的初步研究

对张集选煤厂的煤泥水处理系统存在的问题进行分析,提出该厂煤泥水系统改进和完善方案,努力降低现今煤泥水浓度,使循环水浓度维持在一个合适区间范围,保证跳汰选煤过程能连续、正常、平稳运行,洗水闭路循环,在实践中取得不错的效果。     

酚酮的合成

用环戊二烯和二氯乙酰氯等为原料,以较高的产率合成了酚酮,获得了该化合物的IR、1HNMR和元素分析数据.     

甲氧基丙烯酸酯类杀菌剂的抗性剖析

对16种农业重要病原菌的细胞色素b基因结构序列进行比对,揭示了这些病原菌对甲氧基丙烯酸酯类杀菌剂产生抗性的作用机理,提出了农业生产中延缓抗性的有效措施.     

Phytohormone Mediation of Interactions Between Herbivores and Plant Pathogens

Induced plant defenses against either pathogens or herbivore attackers are regulated by phytohormones. These phytohormones are increasingly recognized as important mediators of interactions between organisms associated with plants. In this review, we discuss the role of plant defense hormones in sequential tri-partite interactions among plants, pathogenic microbes, and herbivorous insects, based on the most recent literature. We discuss the importance of pathogen trophic strategy in the interaction with herbivores that exhibit different feeding modes. Plant resistance mechanisms also affect plant quality in future interactions with attackers. We discuss exemplary evidence for the hypotheses that (i) biotrophic pathogens can facilitate chewing herbivores, unless plants exhibit effector-triggered immunity, but (ii) facilitate or inhibit phloem feeders. (iii) Necrotrophic pathogens, on the other hand, can inhibit both phloem feeders and chewers. We also propose herbivore feeding mode as predictor of effects on pathogens of different trophic strategies, providing evidence for the hypotheses that (iv) phloem feeders inhibit pathogen attack by increasing SA induction, whereas (v) chewing herbivores tend not to affect necrotrophic pathogens, while they may either inhibit or facilitate biotrophic pathogens. Putting these hypotheses to the test will increase our understanding of phytohormonal regulation of plant defense to sequential attack by plant pathogens and insect herbivores. This will provide valuable insight into plant-mediated ecological interactions among members of the plant-associated community.     

乌鸦果根甲醇提取物的抑真菌作用研究

乌鸦果根经甲醇回流提取、石油醚脱脂得到鸟鸦果根甲醇提取物。采用双层培养基法测定其抑真菌活性、琼脂梯度稀释法测定最小抑菌浓度和最小杀菌浓度。结果表明,乌鸦果根甲醇提取物（1000mg·mL^-1）对供试的21种真菌均有不同程度的抑菌活性。最小抑菌浓度和最小杀菌浓度均为31．2-250mg·mL^-1;且提取物抑菌能力与其浓度呈正相关关系。表明乌鸦果根甲醇提取物具有广谱抑制真菌作用,可以作为植物源农药进一步深入研究,具有潜在的开发利用价值。     

原料油虚拟组分划分方法研究

炼厂原油虚拟组分划分是原油评价过程中的一个重要环节,本文对蒙特卡罗法和实沸点蒸馏曲线法两种划分虚拟组分的方法进行了对比和分析,阐述了其适用范围和特点。进一步根据某炼油厂提供的实沸点蒸馏数据,对该厂原料油进行分析,得出该原料油的物性数据,为后面的催化裂化过程模拟奠定基础。     

Radioaktive Indikatormethode in der chemischen Verfahrenstechnik

The radioactive tracer method in the chemical industry. In the chemical industry the radioactive tracer method has become a method of analysis with a variety of applications, which range from determining traces of biologically active substances to process analysis in production plants. Process analysis, for instance the determination of residence-time distributions or of intermingling of streams of different substances, can be carried out under widely varying operating conditions. If the streams of material are labelled with gamma-ray emitters the distribution of the tracers can be determined by means of detectors outside the plant. To demonstrate the possible applications of the method to process analysis, measurements in three different plants are described. Exhaust gases were labelled with Ar-41 to determine the residence-time distribution in plant for the combustion of waste residues consisting of a rotary tube furnace, an afterburn chamber, and a waste-heat boiler. The waste water entering the activation tank of sewage-treatment plant was labelled with Na-24 to determine its residence-time distribution. Individual particles labelled with Mn-56 were used to investigate mixing of the powder in the stirred-bed reactor of a polypropylene plant. The knowledge gained from these measurements has contributed to optimization of existing and planned plant.