110458-12-3Relevant academic research and scientific papers
Gram Scalable Method to Synthesize Biscarbodiimides and Asymmetric Monocarbodiimides: A Platform to Access an Array of Phosphaguanidines, Amidines, and Guanidines
Bailey, Brad,Camelio, Andrew M.,Davis, Anna,Krasovskiy, Arkady
, (2021/11/12)
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.
Pos [...] 4 group metal olefin polymerization catalyst
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Paragraph 0398-0400, (2019/08/27)
Embodiments are directed to phosphaguanidine metal complexes of formula I and using those complexes in α-olefin polymerization systems.
Intramolecular van der Waals Attraction. Conformational Analysis of Di(primary alkyl) Derivatives of Five-and Six-Membered Heterocyclic System.
Berg, Ulf,Petterson, Ingrid
, p. 5177 - 5184 (2007/10/02)
Four N,N'-di(RCH2)imidiazoline-2-thiones and nine N,N'-di(RCH2)thiobarbiturates (R = methyl, isopropyl, tert-butyl, 1-adamantyl, phenyl, phenylmethyl, trimethylsilyl, trifluoromethyl, tert-butyl + phenyl) have been synthesized and investigated by dynamic NMR and molecular mechanics calculations (MM2/MMP2).Introduction of two geminal methyl groups in the molecules enabled unequivocal assignments of the stable conformers.Two conformers, syn and anti, were usually found, and in most cases the more "crowded" syn conformer predominated.The thiobarbiturates, but not imidazoline-2-thione, showed a solvent-dependent syn-anti equilibrium.Molecular mechanics calculations satisfactorily reproduced the syn-anti energy difference.Rationalization of the solvent effect and the results of the molecular mechanics calculations provide support for the operation of van der Waals attraction governing the preference for the syn conformation.
