Dieckmann, Chemische Berichte, 1912, vol. 45, p. 2686
作者:Dieckmann
DOI:——
日期:——
A MILD AND CONVENIENT ONE-POT SYNTHESIS OF 4-ARYL-N-OH-HANTZSCH ESTERS
作者:Chun-Bao Miao、Xiao-Qiang Sun、Chun-Ping Dong、Yan-Hong Wang、Hai-Tao Yang、Qi Meng、Shu-Jiang Tu
DOI:10.3987/com-13-12668
日期:——
A general methodology to prepare a series of 4-Aryl-N-OH Hantzsch esters was developed. The key factor is to control the first-step of Michael addition at 0 degrees C. The method was practical to produce symmetrical and unsymmetric N-OH-Hantzsch esters in moderate yield. This class of compounds might have use in medicinal and material science.
A Facile Synthesis of 4-Aryl-5-alkoxycarbonyl- 6-hydroxy-6-methyl-4,5,6,7-tetrahydro- 3-hydroxy-2-(pyridin-2-yl)indazoles and Their NMR Characterizations
作者:Yeon Tae Jeong、Shanmugasundaram Amirthaganesan、Gopalakrishnan Aridoss、Young Hwan Park、Jong Su Kim、Se Mo Son
DOI:10.3987/com-07-11231
日期:——
Reaction of dialkyl 2-aryl-4-hydroxy-4-methyl-6-oxocyclohexane-1,3-dicarboxylates with aliphatic amines
作者:V. L. Gein、N. V. Nosova、A. S. Prusakova、M. I. Vakhrin、A. P. Kriven’ko
DOI:10.1134/s1070363208120116
日期:2008.12
Benzylamine, phenethylamine, and homoveratrylamine reacted with dialkyl 2-aryl-4-hydroxy-4-methyl-6-oxocyclohexane-1,3-dicarboxylates at the endocyclic carbonyl group with conservation of the enolic hydroxy group to give dialkyl 4-alkylamino-2-aryl-6-hydroxy-6-methylcyclohex-3-ene-1,3-dicarboxylates. The reaction of dimethyl 4-hydroxy-4-methyl-6-oxo-2-phenylcyclohexane-1,3-dicarboxylate with tryptamine was accompanied by dehydration with formation of dimethyl 4-[2-(1H-indol-3-yl)ethylamino]-6-methyl-2-phenylcyclohexa-3,5-diene-1,3-dicarboxylate, presumably due to basic properties of the indole nitrogen atom.
LAL B.; BHADURI A. P., INDIAN J. CHEM. <IJOC-P>, 1977, B 15, NO 4, 359-363