Gram Scalable Method to Synthesize Biscarbodiimides and Asymmetric Monocarbodiimides: A Platform to Access an Array of Phosphaguanidines, Amidines, and Guanidines
A mild, broadly functional group tolerant methodology has been developed to access a 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.
Bailey, Brad,Camelio, Andrew M.,Davis, Anna,Krasovskiy, Arkady
(2021/11/12)
Continuous-flow synthesis of thioureas, enabled by aqueous polysulfide solution
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 a wide range of thioureas synthesized by this procedure confirms the utility of the convenient continuous-flow application of sulfur.
ábrányi-Balogh, Péter,Keser?, Gy?rgy M.,Mándity, István M.,Németh, András Gy.,Orsy, Gy?rgy,Szabó, Renáta
(2021/06/25)
Pos [...] 4 group metal olefin polymerization catalyst
Embodiments are directed to phosphaguanidine metal complexes of formula I and using those complexes in α-olefin polymerization systems.
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Paragraph 0385-0386
(2019/08/27)
Three-component reaction between isocyanides, aliphatic amines and elemental sulfur: Preparation of thioureas under mild conditions 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 yields and with complete atom economy.
Nguyen, Thanh Binh,Ermolenko, Ludmila,Al-Mourabit, Ali
p. 3172 - 3179
(2015/01/09)
Synthesis and biological evaluation of new 2,3-dihydrothiazole derivatives for antimicrobial, antihypertensive, and anticonvulsant activities
A novel series of 2-arylimino-2,3-dihydrothiazole derivatives, substituted in the 3-position with a β-phenethyl moiety and the 4-position with substituted aryl functions, was synthesized as potential antimicrobial, antihypertensive and anticonvulsive agen
Omar,Eshba
p. 1166 - 1168
(2007/10/02)
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