Three-Component Reaction between Isocyanides, Aliphatic Amines and Elemental Sulfur: Preparation of Thioureas under Mild Conditions with Complete Atom Economy
作者:Thanh Nguyen、Ali Al-Mourabit、Ludmila Ermolenko
DOI:10.1055/s-0034-1379327
日期:——
Abstract The reaction of isocyanides with aliphatic amines in the presence of elemental sulfur was found to proceed efficiently at, or near, room temperature to produce thioureas in excellent yields and with complete atom economy. The reaction of isocyanides with aliphatic amines in the presence of elemental sulfur was found to proceed efficiently at, or near, room temperature to produce thioureas in excellent
Gram Scalable Method to Synthesize Biscarbodiimides and Asymmetric Monocarbodiimides: A Platform to Access an Array of Phosphaguanidines, Amidines, and Guanidines
作者:Andrew M. Camelio、Arkady Krasovskiy、Brad Bailey、Anna Davis
DOI:10.1021/acs.joc.1c01281
日期:2022.2.18
variety of mono- and bis-carbodiimides in good yield and high purity on multigram scale. Direct addition into these versatile motifs facilitated the rapid synthesis of a library of novel amidinines, guanidines, and phosphaguandines.
Continuous-Flow Synthesis of Thioureas, Enabled by Aqueous Polysulfide Solution
作者:András Gy. Németh、Renáta Szabó、György Orsy、István M. Mándity、György M. Keserű、Péter Ábrányi-Balogh
DOI:10.3390/molecules26020303
日期:——
We have developed the continuous-flow synthesis of thioureas in a multicomponent reaction starting from isocyanides, amidines, or amines and sulfur. The aqueous polysulfide solution enabled the application of sulfur under homogeneous and mild conditions. The crystallized products were isolated by simple filtration after the removal of the co-solvent, and the sulfur retained in the mother liquid. Presenting
Synthesis and Biological Evaluation of New 2,3-Dihydrothiazole Derivatives for Antimicrobial, Antihypertensive, and Anticonvulsant Activities
作者:A.-Mohsen M.E. Omarx、Nabil H. Eshba
DOI:10.1002/jps.2600730837
日期:1984.8
3-dihydrothiazole derivatives, substituted in the 3-position with a beta-phenethyl moiety and the 4-position with substituted aryl functions, was synthesized as potential antimicrobial, antihypertensive and anticonvulsive agents. While no antimicrobial or significant antihypertensiveactivity was observed for the products, XII, XIII, and XXI displayed potent anticonvulsantactivity.