36880-33-8Relevant articles and documents
KINETICS OF THE FORMYLATION OF THIOPHENE DERIVATIVES WITH N,N-DIMETHYLFORMAMIDE
Freidlin, G.N.,Kuraeva, N.A.,Solop, K.A.
, p. 230 - 233 (1980)
The kinetics of the formylation of five thiophene derivatives in the presence of phosphorus oxychloride and the formylation of thiophene in the presence of thionyl chloride were investigated.The effect of the condensing agent on the reaction rate is shown, and rate constants and the activation parameters are calculated.The isokinetic dependence and the Hammett dependence of the reactivities on the structure were established for this reaction series.The effect of the solvent on the formylation was studied.
Aryl [a] indole [2,3 - the g] and quinolizine compound, preparation method thereof, pharmaceutical compositions and uses thereof
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Paragraph 0372; 0373, (2017/01/17)
The invention relates to an aryl [a] indole [2,3-g] quinolizine compound as well as a preparation method, a pharmaceutical composition and application thereof, and particularly relates to a aryl [a] indole [2,3-g] quinolizine compound with a novel structure as shown in a general formula (I) and a derivative, a preparation method and a pharmaceutical composition thereof and application of the aryl [a] indole [2,3-g] quinolizine compound in preparation of a drug for treating diseases related to alpha 1-adrenoreceptor and urinary system diseases, such as benign prostatic hyperplasia, uroschesis and bladder outlet obstruction, especially.
Synthesis of novel thiophene-based chiral ligands and their application in asymmetric Henry reaction
Aydin, A. Ebru
, p. 283 - 289 (2013/06/27)
Novel chiral thiolated amino alcohols were synthesized from norephedrine and thiophene carbaldehydes (methyl- or ethyl-substituted) and applied to the catalytic asymmetric Henry reaction of various aldehydes with nitromethane to provide β-hydroxy nitroalkanols in high conversion (92%). The reaction was optimized in terms of the metal, solvent, temperature and amount of chiral ligand. The corresponding catalyst with Cu(OTf)2 and 2-propanol as the solvent provided the best enantioselectivities (up to 96% ee) of the corresponding nitroalcohols for aliphatic aldehydes. Copyright 2013 John Wiley & Sons, Ltd. Chiral thiophene contanining amino alcohol ligands were synthesized from norephedrine and substituted 5-thiophene-2-carbaldehyde. This novel chiral ligands were used to catalyze enantioselective Henry reaction of various aldehydes and nitroalkanes in high yields with good to high enantio- and diastereoselectivities. Copyright