{"id":9939,"date":"2022-10-12T07:01:16","date_gmt":"2022-10-11T23:01:16","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=9939"},"modified":"2022-10-12T07:01:16","modified_gmt":"2022-10-11T23:01:16","slug":"vasileva-v-fs-team-published-research-in-zhurnal-obshchei-khimii-in-1962-17827-61-1","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=9939","title":{"rendered":"Vasil&#8217;eva, V F&#8217;s team published research in Zhurnal Obshchei Khimii  in 1962 | 17827-61-1"},"content":{"rendered":"<p>Vasil&#8217;eva, V. F.; Yashunskii, V. G. published the artcile< Sydnones and sydnonimines. XIII. Reaction of 3-methyl- and 3-ethylsydnones with methyl acrylate>,  <a href=\"https:\/\/www.ambeed.com\/products\/17827-61-1.html\">HPLC of Formula: 17827-61-1<\/a>,  the main research area is  .<\/p>\n<p>Treatment of N-methylglycine with NaNO2 in aqueous HCl at 0\u00b0, followed by keeping the crude N-nitroso derivative with Ac2O 10 days at room temperature, gave 56.2% 3-methylsydnone (I), b0.7 162-5\u00b0. Similarly was prepared N-nitroso-N-ethylglycine, m. 85-6\u00b0, which with Ac2O gave 45.5% 3-ethylsydnone (II), b0.5 153-6\u00b0. Heating I with CH2:CHCO2Me 36 hrs. at 125-50\u00b0 gave 56.5% Me 1-methyl-\u03b42-pyrazoline-3-carboxylate (III), b7 103-4\u00b0, d20 1.1162, n20D 1.5093, \u03bb 306 m\u03bc, and 24% crude Me x-carbomethoxy-1-methylpyrazoline-propionate (IV) (positions of attached groups not certain), b0.6 138-41\u00b0. The former in 2 days in MeOH-NH8 gave 1-methyl-\u03b42-pyrazolinecarboxamide, m. 116-18\u00b0, \u03bb 296 m\u03bc, while the latter ester gave the corresponding diamide, decomposed 241-2\u00b0. III and Pb(OAc)4 in AcOH (exothermic) gave 65% Me 1-methyl-pyrazole-3-carboxylate, b1 108-10\u00b0, which with MeOH-NH3 gave the corresponding amide, m. 139-40.5\u00b0, \u03bb 220 m\u03bc. 1-Methylpyrazole-4-carboxylic acid refluxed with MeOH-H2SO4 in C5H6 gave the Me ester, m. 63-4.5\u00b0, which with MeOH-NH3 1 day in a sealed tube gave the amide, m. 181.5-83\u00b0. II and CH2:CHCO2Me in 34 hrs. at 125\u00b0 gave 51% Me 1-ethyl-\u03b42-pyrazoline-3-carboxylate (V), b7 110-12\u00b0 b0.8 90\u00b0 1.0860, 1.5065, and some 25% crude 1-ethyl analog of IV, b0.5 135-42\u00b0. The former in MeOH-NH3 gave the amide, m. 92-4\u00b0 while the latter ester similarly gave the diamide, decomposed 251-2\u00b0. V and Pb(OAc)4, as above, gave 62.5% Me 1-ethylpyrazole-3-carboxylate, b6 115-16\u00b0, which gave the amide, m. 100-1\u00b0. Infrared and ultraviolet spectra of the esters are reported.<\/p>\n<p>Zhurnal Obshchei Khimii published new progress about IR spectra. 17827-61-1 belongs to class pyrazoles-derivatives, and the molecular formula is C6H8N2O2, <a href=\"https:\/\/www.ambeed.com\/products\/17827-61-1.html\">HPLC of Formula: 17827-61-1<\/a>.<\/p>\n<p>Referemce:<br \/><a href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrazole\">Pyrazole &#8211; Wikipedia<\/a>,<br \/><a href=\"https:\/\/www.sciencedirect.com\/topics\/chemistry\/pyrazoles\">Pyrazoles &#8211; an overview | ScienceDirect Topics<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Zhurnal Obshchei Khimii published new progress about IR spectra. 17827-61-1 belongs to class pyrazoles-derivatives, and the molecular formula is C6H8N2O2, <a href=\"https:\/\/www.ambeed.com\/products\/17827-61-1.html\">HPLC of Formula: 17827-61-1<\/a>.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[594,131],"tags":[732],"class_list":["post-9939","post","type-post","status-publish","format-standard","hentry","category-17827-61-1","category-pyrazoles-derivatives","tag-m-w100-150"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Vasil&#039;eva, V F&#039;s team published research in Zhurnal Obshchei Khimii in 1962 | 17827-61-1 | pyrazoles-derivatives<\/title>\n<meta name=\"description\" content=\"Vasil&#039;eva, V. 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