共查询到19条相似文献,搜索用时 78 毫秒
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相转移催化合成O,O-二芳基(硫代)磷酰氯 总被引:1,自引:1,他引:0
用0.05mol三氯硫磷和0.10mol的酚通过相转移催化反应合成O,O-二芳氧基硫代磷酸氯可得较好收率。产物经IR和1HNMR表征。 相似文献
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在相转移催化剂存在下,由对苯二酚和2-氯乙醚一步合成对苯二酚二(ω-氯代二甘醇)醚,收率81%。 相似文献
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相转移催化氧化合成氯代苯甲酸 总被引:1,自引:0,他引:1
研究了以季铵盐A-1作催化剂,KMnO4作氧化剂,催化氧化邻、对位氯代甲苯合成邻、对位氯代苯甲酸的反应。优化反应条件为:氯代甲苯50mmol,n(氯代甲苯):n(KMnO4):n(A-1):n(H2O)=1.00:2.60:0.05:300,反应温度93℃,反应时间2.5h,pH=7。邻、对位氯代苯甲酸的产率分别为76.4%,76.9%。 相似文献
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报道了合成S-烷基S-烷基(芳基)二硫代磷酸衍生物的一种便利的新方法。O,O-二烷基S-烷基(芳基)二硫代磷酸酯与三氯氧磷发生氯化反应的同时,伴随着P=S键异构成P-S键,生成S-烷基S-烷基(芳基)二硫代磷酰氯,在碱存在下进一步与各种亲核试剂反应,得到S-烷基S-烷基(芳基)二硫代磷酸衍生物。 相似文献
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合成了 6种 O,O′,O′′,O′′′-四芳基双二硫代磷酰亚胺的合成类化合物 ,产物经元素分析、IR,1 H NMR和 MS表征。 相似文献
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近年来,分子中含有1,2,4-三唑的非有机磷化合物作为杀菌剂和植物生长调节剂已受到广泛重视.为进一步开发有机磷和三唑类农药新品种,科学工作者合成了含三唑的有机磷化合物,发现某些化合物对植物的白粉病及锈病具有较强的生理活性,故进一步合成和研究各类新型含三唑的有机磷化合物具有较大的意义。作者曾报道某些含三唑的二硫代磷酸酯类化合物的合成及生物活性,发现某些化合物具有一定的杀菌、除草及调节植物生长作用. 相似文献
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烷基膦酸二烷基酯的固-液相转移催化合成及其阻燃性能王筱梅*杨平蔡庆华鲍猛(山东建筑材料工业学院应用化学系济南250022)关键词烷基膦酸二烷基酯,合成,相转移催化,阻燃性1996-08-12收稿,1997-03-03修回烷基膦酸二烷基酯是一类具有实用... 相似文献
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M. Lachowska 《Reaction Kinetics and Catalysis Letters》1999,67(1):149-154
The synthesis of higher alcohols over the catalyst developed in our laboratory were carried out with the separate addition
of methanol or ethanol. Strongly increased yields of all C3+ alcohols were observed. 相似文献
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M. A. Dokukina V. E. Vol'eva I. S. Belostotskaya N. L. Komissarova A. Yu. Karmilov E. V. Tal'anova V. V. Ershov 《Russian Chemical Bulletin》1994,43(10):1738-1739
The solid-phase catalytic oxidation in the 2-hydroxy-3,5-di-tert-butylbenzyl alcohol-MnO2-NaOH system to yield 2-hydroxy-3,5-di-tert-butylbenzaldehyde was carried out. Gaseous oxygen participates in the regeneration of the active form of the oxidant.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 1833–1834, October, 1994.This work was carried out with the financial support of the Russian Foundation for Basic Research (Project No. 94-03-08653). 相似文献
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Chandra S. Sharma Brajesh K. Jha Padam N. Nagar 《Phosphorus, sulfur, and silicon and the related elements》2013,188(10):2259-2267
Phosphorus trichloride and thiophosphoryl chloride derivatives of alkylene dithiophosphates of the type PCl3 ? n () n and P(S)Cl3? n () n (where G = -CH2CH2CHMe-, -CMe2CMe2-, -CH2CH2CH2CH2- and -CMe2CH2 CHMe-, n = 1, 2, 3] have been synthesized for the first time by reacting the ammonium salt of alkylene dithiophosphoric acid with phosphorus trichloride and thiophosphoryl chloride in different stoichiometric ratios under anhydrous reaction conditions. The newly synthesized derivatives are either colorless liquids or viscous semisolids, hygroscopic in nature and are soluble in common organic solvents. These are characterized by elemental analysis, molecular weight determinations and physicochemical studies IR, NMR (1H and 31P). On the basis of above studies the formation of P-S-P and S = P–S–P(S) chemical linkages have been established. 231P NMR studies provide convincing evidence regarding the chemical bonding mode in these derivatives. 相似文献
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