{"id":12096,"date":"2023-01-30T07:04:01","date_gmt":"2023-01-29T23:04:01","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=12096"},"modified":"2023-01-30T07:04:01","modified_gmt":"2023-01-29T23:04:01","slug":"szecsenyi-k-meszaros-et-al-published-their-research-in-journal-of-thermal-analysis-and-calorimetry-in-2001-cas-934-48-5","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=12096","title":{"rendered":"Szecsenyi, K. Meszaros et al. published their research in Journal of Thermal Analysis and Calorimetry in 2001 | CAS: 934-48-5"},"content":{"rendered":"<p>Transition metal complexes with pyrazole-based ligands Part 12. Characterisation and thermal decomposition of CuCl<sub>2<\/sub> complexes with di- and trisubstituted pyrazoles was written by Szecsenyi, K. Meszaros;Leovac, V. M.;Jacimovic, Z. K.;Cesljevic, V. I.;Kovacs, A.;Pokol, G.. And the article was included in Journal of Thermal Analysis and Calorimetry in 2001.<a href=\"https:\/\/www.ambeed.com\/products\/934-48-5.html\">COA of Formula: C6H9N3O<\/a> This article mentions the following:<\/p>\n<p>The synthesis of copper(II) chloride complexes with 3,5-dimethylpyrazole, 1-carboxamide-3,5-dimethylpyrazole, 5-amino-4-carboxamide-1-phenylpyrazole and 4-acetyl-3-amino-5-methylpyrazole is described. The compounds were characterized by elemental anal., FTIR spectroscopy, thermal methods, magnetic moment and molar conductivity measurements. Elimination of the carboxamide group from the 1-carboxamide-3,5-dimethylpyrazole takes place to give 3,5-dimethylpyrazole complexes. Thermal decomposition of the dichloro(3,5-dimethylpyrazole)copper(II) complex results in an unstable intermediate with a stoichiometric composition The decomposition of the other compounds is continuous. In the experiment, the researchers used many compounds, for example, 3,5-Dimethyl-1H-pyrazole-1-carboxamide (cas: 934-48-5<a href=\"https:\/\/www.ambeed.com\/products\/934-48-5.html\">COA of Formula: C6H9N3O<\/a>).<\/p>\n<p>3,5-Dimethyl-1H-pyrazole-1-carboxamide (cas: 934-48-5) belongs to pyrazole derivatives. Pyrazole has two ring nitrogen atoms in which N1 is pyrrolic and N2 is pyridine-like. The N1 nitrogen is not reactive but is deprotonated in the presence of a base-forming anion. The presence of both electronegative nitrogen atoms in the pyrazole ring reduces the electron density of the C3- and C5-positions leaving electron density of C4-position unaltered. Thus the C4-position is vulnerable to electrophilic attack. The C3 electrophilic-position may undergo deprotonation in the presence of a strong base leading to ring opening.<a href=\"https:\/\/www.ambeed.com\/products\/934-48-5.html\">COA of Formula: C6H9N3O<\/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>3,5-Dimethyl-1H-pyrazole-1-carboxamide (cas: 934-48-5) belongs to pyrazole derivatives. Pyrazole has two ring nitrogen atoms in which N1 is pyrrolic and N2 is pyridine-like. The N1 nitrogen is not reactive but is deprotonated in the presence of a base-forming anion. The presence of both electronegative nitrogen atoms in the pyrazole ring reduces the electron density of the C3- and C5-positions leaving electron density of C4-position unaltered. Thus the C4-position is vulnerable to electrophilic attack. The C3 electrophilic-position may undergo deprotonation in the presence of a strong base leading to ring opening.<a href=\"https:\/\/www.ambeed.com\/products\/934-48-5.html\">COA of Formula: C6H9N3O<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[131],"tags":[128],"class_list":["post-12096","post","type-post","status-publish","format-standard","hentry","category-pyrazoles-derivatives","tag-100-200"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Szecsenyi, K. 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And the article was included in Journal of Thermal Analysis and Calorimetry in 2001.COA of Formula: C6H9N3O This article mentions the following:\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.pyrazoles-derivatives.com\/?p=12096\" \/>\n<meta property=\"og:site_name\" content=\"pyrazoles-derivatives\" \/>\n<meta property=\"article:published_time\" content=\"2023-01-29T23:04:01+00:00\" \/>\n<meta name=\"author\" content=\"Jessica.F\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jessica.F\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=12096\",\"url\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=12096\",\"name\":\"Szecsenyi, K. 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