3336-65-0Relevant academic research and scientific papers
PhICl2-mediated conversion of enamines into α, N -dichloroimines and their reverse conversion mediated by zinc in methanol
Tang, Linlin,Zhang-Negrerie, Daisy,Du, Yunfei,Zhao, Kang
supporting information, p. 1621 - 1629 (2014/06/23)
Treatment of enamine compounds with iodobenzene dichloride (PhICl 2) conveniently gives a variety of α,N-dichloroimines in high yields. This approach allows the double insertion of the chloro moiety, which is postulated to take place via the io
Isothiazole and isoxazole fused pyrimidones as PDE7 inhibitors: SAR and pharmacokinetic evaluation
Banerjee, Abhisek,Yadav, Pravin S.,Bajpai, Malini,Sangana, Ramachandra Rao,Gullapalli, Srinivas,Gudi, Girish S.,Gharat, Laxmikant A.
, p. 3223 - 3228 (2012/06/18)
The synthesis and structure-activity relationship studies of isothiazole and isoxazole fused pyrimidones as PDE7 inhibitors are discussed. The pharmacokinetic profile of 10 and 21 with adequate CNS penetration, required for in vivo Parkinson's disease mod
Iminium Carbonic Acid Derivative Salts. XI [1]. Synthesis of N,S-Containing Heterobicycles from N-Protected 2-Methylthio-1,3-thiazinium and 2-Methylthiothiazolium Salts. Part 3. Reaction of N-Protected 2-Methylthio-1,3-thiazinium and 2-Methylthiothiazolium Salts with 3-Amino-2-cyano-3-arylacrylonitriles
Hanefeld, Wolfgang,Naeeni, Mahmoud,Schlitzer, Martin
, p. 1903 - 1907 (2007/10/03)
N-Boc-protected 2-methylthio-1,3-thiazinium 1 and 2-methylthiothiazolium iodides 2,3 obtained from the corresponding 3,4,5,6-tetrahydro-2H-1,3-thiazine-2-thiones and thiazolidine-2-thiones by the action of methyl iodide were reacted with 3-amino-2-cyano-3-arylacrylonitriles forming the cyclic isothioureas 5-7. The protection group was removed with trifluoroacetic acid whereupon the desired cyclisation to 3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazines 8a-c, 8a′-c′ and thiazolo[3,2-b]pyrimidines 9a,b, 9a′,b′, 10a,b took place.
SYNTHESIS AND FLASH VACUUM PYROLYSIS OF ISOXAZOLO- AND ISOTHIAZOLOPYRIMIDINES
Kappe, C. Oliver,Flammang, Robert,Wentrup, Curt
, p. 1615 - 1622 (2007/10/02)
The multi-step synthesis of isothiazolopyrimidines (1c, 1d) and isoxazolopyrimidine (1b) is described.Flash vacuum pyrolysis of 1b leads to phenyliminopropadienone, Ph-N=C=C=C=O, which was identified by Ar matrix infrared spectroscopy.
NEW ONE-POT SYNTHESIS OF ENAMINEDINITRILES
Berry, Robert W. H.,Drewry, Peter C.,Hodson, Harold F.
, p. 958 - 975 (2007/10/02)
A convenient procedure is reported for the one-pot preparation of enaminedinitriles.This involves the sodium methoxide-catalysed addition of methanol to a suitably substituted nitrile followed by reaction of the resulting imidate with malononitrile.The mechanism, scope and limitations of the synthesis have been investigated.Spectroscopic evidence is presented that the products exist in the enaminedinitrile rather than in the tautomeric imino form.Various reactions of the compounds including halogen exchange, anion formation and amine displacement have been studied and used to extend the range of enaminedinitriles prepared.
