Results 91 to 100 of about 10,322 (256)
CHIMIA, 1976 A new synthesis of 2,4-bis(dialkylamino)-pyridines and quinolines is reported. Starting from primary aryl amines or aliphatic imines a mechanism via ynamine-amidines is followed if the cyanine Ia is used as reagent. When the cyanine is substituted, (I.R.
H.G. Viehe, G.J. de Voghel, F. Smets
doaj +1 more source
Perfluoroether triazine elastomers [PDF]
The synthesis of high performance elastomers with the high thermal stability and chemical, inertness of perfluoroalkylene triazine and a low glass transition temperature is discussed.
Korus, R. A.
core +1 more source
Design and synthesis of amidine-type peptide bond isosteres: application of nitrile oxide derivatives as active ester equivalents in peptide and peptidomimetics synthesis. [PDF]
, 2011 Amidine-type peptide bond isosteres were designed based on the substitution of the peptide bond carbonyl (C=O) group with an imino (C=NH) group. The positively-charged property of the isosteric part resembles a reduced amide-type peptidomimetic.
Fujii, Nobutaka +7 more
core +1 more source
Synthesis of novel 6-enaminopurines [PDF]
, 2004 Two different approaches have been used for the synthesis of 6-enaminopurines 6 from 5-amino-4-cyanoformimidoyl imidazoles 1. In the first approach imidazoles 1 were reacted with ethoxymethylenemalononitrile or ethoxymethylenecyanoacetate under mild ...
Booth, Brian L. +4 more
core +1 more source
High performance channel injection sealant invention abstract [PDF]
High performance channel sealant is based on NASA patented cyano and diamidoximine-terminated perfluoroalkylene ether prepolymers that are thermally condensed and cross linked.
Basiulis, D. I. +2 more
core +1 more source
Acaricides for eradication of the tick Amblyomma variegatum in the Caribbean [PDF]
, 1993 Le succés d'une campagne d'éradication de la tique Amblyomma variegatum dans les Caraïbes impose l'utilisation d'acaricides efficaces, si possible rémanents, faciles d'emploi, ne necessitant pas le recours à de l'eau pour la préparation de liquides ...
Aprelon, Rosalie +2 more
core
Beilstein Journal of Organic Chemistry, 2014 A facile and efficient synthetic protocol for the synthesis of α-amino amidines has been developed using a molecular iodine-catalyzed three-component coupling reaction of isocyanides, amines, and aldehydes. The presented strategy offers the advantages of
Praveen Reddy Adiyala +4 more
doaj +1 more source
An Amidinate‐Stabilized Germatrisilacyclobutadiene Ylide
Chemistry – A European Journal, 2012 AbstractThe synthesis and characterization of new amidinate‐stabilized germatrisilacyclobutadiene ylides [L3Si3GeL′] (L=PhC(NtBu)2; L′=ËL; Ë=Ge (3), Si (7)) are described. Compound 3 was prepared by the reaction of [LSiSiL] (1) with one equivalent of [LGeGeL] (2) in THF. Compound 7 was synthesized by the reaction of 2 with excess 1 in THF.
Yeong, Hui-Xian +6 more
openaire +3 more sources
A four-step synthesis of novel (S)-1-(heteroaryl)ethan-1-amines from (S)-Boc-alanine
Acta Chimica Slovenica, 2014 A series of (S)-1-(pyrimidin-4-yl)-, and regioisomeric (S)-1-(pyrazolo[1,5-a]pyrimidin-7-yl)-, and (S)-1-(pyrazolo[1,5-a]pyrimidin-5-yl)ethan-1-amines were prepared by cyclisation of (S)-N-Boc-alanine-derived ynone with N,N-1,3-dinucleophiles, such as ...
Jurij Svete +3 more
doaj +1 more source
Novel amidines and analogues as promising agents against intracellular parasites: a systematic review [PDF]
, 2017 Parasitic protozoa comprise diverse aetiological agents responsible for important diseases in humans and animals including sleeping sickness, Chagas disease, leishmaniasis, malaria, toxoplasmosis and others.
BOYKIN, D. W. +5 more
core