caa a22 4500 445876131 CHVBK 20180317145528.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10593-011-0850-9 doi (NATIONALLICENCE)springer-10.1007/s10593-011-0850-9 Reaction of acetylenedicarboxylic acids esters with 4,5-dihydro-1 H -pyrazole-1-carbothioamides and 3,4,5,6-tetrahydro-2 H -1,2,4-triazepine-3-thiones [Elektronische Daten] [N. Danilkina, L. Mikhaylov, B. Ivin] The reactions of dimethyl acetylenecarboxylate with 3,4,5,6-tetrahydro-2H-1,2,4-triazepine-3-thiones and 4,5-dihydro-1H-pyrazole-1-carbothioamides are convenient methods for the synthesis of 7,8-dihydrothiazolo[3,2-b][1,2,4]triazepin-3-ones derivatives and methyl esters of (2Z)-[2-(4,5-dihydro-1H-pyrazol-1-yl)-4-oxo-1,3-thiazol-5(4H)-ylidene]acetic acids, respectively. The reaction of methyl propynoates with 4,5-dihydro-1H-pyrazole-1-carbothioamides or with 5,5,7-trimethyl-2,4,5,6-tetrahydro-3H-1,2,4-triazepine-3-thione gives 2-(4,5-dihydro-1H-pyrazol-1-yl)-4H-1,3-thiazin-4-ones. Springer Science+Business Media, Inc., 2011 4,5-dihydro-1 H -pyrazole-1-carbothioamides nationallicence 2,4,5,6-tetrahydro-3 H -1,2,4-triazepine-3-thiones nationallicence 1,3-thiazin-4-ones nationallicence 1,3-thiazol-4-ones nationallicence thiazolo[3,2- b ][1,2,4]triazepin-3-ones nationallicence acetylenecarboxylic acids esters nationallicence C-H coupling constants nationallicence Danilkina N. St. Petersburg State University, 26 Universitetskiy Pr., 198504, St. Petersburg, Russia aut Mikhaylov L. St. Petersburg State University, 26 Universitetskiy Pr., 198504, St. Petersburg, Russia aut Ivin B. St. Petersburg State Chemical-Pharmaceutical Academy, 14 Prof. Popova St., 197022, St. Petersburg, Russia aut Chemistry of Heterocyclic Compounds Springer US; http://www.springer-ny.com 47/7(2011-10-01), 886-900 0009-3122 47:7<886 2011 47 10593 https://doi.org/10.1007/s10593-011-0850-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10593-011-0850-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Danilkina N. St. Petersburg State University, 26 Universitetskiy Pr., 198504, St. Petersburg, Russia aut NATIONALLICENCE 700 1- Mikhaylov L. St. Petersburg State University, 26 Universitetskiy Pr., 198504, St. Petersburg, Russia aut NATIONALLICENCE 700 1- Ivin B. St. Petersburg State Chemical-Pharmaceutical Academy, 14 Prof. Popova St., 197022, St. Petersburg, Russia aut NATIONALLICENCE 773 0- Chemistry of Heterocyclic Compounds Springer US; http://www.springer-ny.com 47/7(2011-10-01), 886-900 0009-3122 47:7<886 2011 47 10593 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer