Results 31 to 40 of about 15,901 (303)
Molecules, 2021 This paper reports the synthesis of branched alkylene guanidines using microfluidic technologies. We describe the preparation of guanidine derivatives at lower temperatures, and with significantly less time than that required in the previously applicable
Denis O. Shatalov +10 more
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Synthesis of an advanced intermediate of alfa-alloenduracididine from allylglycine
Orbital: The Electronic Journal of Chemistry, 2012 α-Alloenduracididine, 3-(2-amino-4,5-dihydro-1Himidazole-4-yl)-2-aminopropionic acid)1 and its diastereoisomer, enduracididine 2, are two nonproteinogenic amino acids isolated in 1968 from Streptomyces fungicidicus as part of a cyclopeptide the ...
Silvia Helena Cardoso +3 more
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Enantioselective Michael addition of isobutyraldehyde to nitroalkenes organocatalyzed by chiral primary amine-guanidines [PDF]
, 2014 Primary amine-guanidines derived from trans-cyclohexane-1,2-diamines are used as organocatalysts for the enantioselective conjugate addition of isobutyraldehyde to arylated and heteroarylated nitroalkenes.
Chinchilla, Rafael +4 more
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CrystalsGuanidine-containing molecules are an interesting class of compounds within both medicinal and material sciences. Having knowledge of their tautomerism is key in designing guanidines that interact with biological and chemical receptors.
Vijayaragavan Elumalai +6 more
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An Expeditious and Greener Synthesis of 2-Aminoimidazoles in Deep Eutectic Solvents
Molecules, 2016 A high-yield one-pot two-step synthesis of 2-aminoimidazoles (2-AI), exploiting an under-air heterocyclodehydration process between α-chloroketones and guanidine derivatives, and using deep eutectic solvents (DESs) as nonconventional, “green” and ...
Martina Capua +6 more
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Ultrasonics Sonochemistry, 2022 The chemotype of arylsulfonamide derivatives of cyclic arylguanidines is a source of molecules with valuable biological activities, including antimicrobial and antitumor properties.
Przemysław Zaręba +5 more
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Chemical and Pharmaceutical Bulletin, 2010 Guanidines are categorized as strong organobases; however, their catalytic utility in organic synthesis has not been discussed thoroughly. The author's group has extensively and systematically studied their potential ability focusing on: 1) modified guanidines as chiral auxiliaries; 2) guanidinium ylides for aziridine formation; 3) the affinity of ...
openaire +3 more sources
Zinc-Catalyzed Guanylation Reaction of Amines to Carbodiimides/Isocyanate Leading to of Guanidines/Urea Derivatives Formation [PDF]
, 2016 [Not ...
Bhattacharjee, J +2 more
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Crystal structure of 1,2-bis(2,6-dimethylphenyl)-3-phenylguanidine
Acta Crystallographica Section E: Crystallographic Communications, 2015 In the title compound, C23H25N3, the dihedral angles between the planes of the benzene ring and the two substituent dimethylphenyl rings are 60.94 (7)° and 88.08 (7)°, and the dihedral angle between the planes of the two dimethylphenyl rings is 58.01 (7)°
Hongfei Han, Zhiqiang Guo, Xuehong Wei
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Biguanide-, imine-, and guanidine-based networks as catalysts for transesterification of vegetable oil [PDF]
, 2010 Polycationic systems based on poly(hexamethylene biguanide) (PHMBG), branched polyethyleneimine (PEI) and poly(N-vinylguanidine) (PVG) have been evaluated as heterogeneous catalysts for the transesterification of sunflower oil by methanol.
Alvarez, Michael +4 more
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