DESIGN, SYNTHESIS AND ANTIMICROBIAL ACTIVITIES OF 1-(4-OXO-3-(4-FLUOROPHENYL)-3H-QUINAZOLIN- 2-YL)-4-(SUBSTITUTED) THIOSEMICARBAZIDE DERIVATIVES
作者:V ALAGARSAMY、RAMGOPAL APPANI、M. T SULTHANA、B NARENDAR、V. RAJA SOLOMON
DOI:10.4067/s0717-97072016000200002
日期:——
1) with carbon disulphide and sodium hydroxide in dimethyl sulphoxide to give sodium dithiocarbamate, which was methylated with dimethyl sulfate to yield the dithiocarbamic acid methyl ester (2) and condensed with methyl anthranilate (3) in ethanol yielded the desired compound (4) via the thiourea intermediate. The SH group of compound ( 4 ) was methylated for the favorable nucleophilic displacement
Various N-aryl-2-aminobenzoxazoles and N-aryl-2-aminobenzothiazoles were synthesized from o-aminophenol and o-aminothiophenol, respectively, mediated by dithiocarbamate in one step. The salient features of this method include mild reaction condition, high yield and large scale synthesis. Application of this methodology has been demonstrated by synthesizing potent Aurora kinase-A inhibitors.
Pyridopyrimidines. X. Synthesis of 3-Substituted 2-Thioxo-5,7-dimethylpyrido[2,3-<i>d</i>] pyrimidin-4(3<i>H</i>)-ones and their<i>S</i>-Alkylation Under Phase Transfer Conditions
作者:Chaitanya G. Dave、Killol J. Patel
DOI:10.1002/jhet.5570380223
日期:2001.3
2-Thioxo-5,7-dimethylpyrido[2,3-d]pyrimidin-4(3H)-ones 3 were synthesized by the cyclocondensation of 2-amino-3-carbethoxy-4,6-dimethylpyridine 1 with methyl-N-aryldithiocarbamates 2 and compared with the condensation between 1 and aryl isothiocyanates 4. When a comparative study of N vs S alkylation of ambident 2-thioxo-5,7-dimethylpyrido[2,3-d]pyrimidin-4(3H)-ones 3 was carried out under liquid-liquid
通过2-氨基-3-甲乙氧基-4,6-二甲基吡啶1与甲基-N的环缩合反应,合成了2-噻氧基-5,7-二甲基吡啶[2,3- d ]嘧啶-4(3 H)-ones 3。 -芳基二硫代氨基甲酸酯2并与1和芳基异硫氰酸酯4的缩合比较。当比较环境2-硫代-5,7-二甲基吡啶并[2,3 - d ]嘧啶-4(3 H)-的N与S烷基化的比较研究时者3使用各种烷基化剂液-液和固-液相转移条件下进行5中,小号烷基化产物6 是专门和有选择地获得的。
Dithiocarbamate and DBU-promoted amide bond formation under microwave condition
作者:Katari Naresh Kumar、Kintali Sreeramamurthy、Sadananda Palle、Khagga Mukkanti、Parthasarathi Das
DOI:10.1016/j.tetlet.2009.11.127
日期:2010.2
Dithiocarbamate and DBU-promoted amide bond formation under microwave condition has been reported. The versatility of this synthetic protocol has been demonstrated with various carboxylic acids and different dithiocarbamates. The products thus obtained have been characterized by mp, IR, H-1 NMR, and mass spectroscopy. (C) 2009 Elsevier Ltd. All rights reserved.