{"id":11879,"date":"2022-12-30T07:43:12","date_gmt":"2022-12-29T23:43:12","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=11879"},"modified":"2022-12-30T07:43:12","modified_gmt":"2022-12-29T23:43:12","slug":"benckova-m-et-al-published-their-research-in-chemical-papers-in-1989-cas-45887-08-9","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=11879","title":{"rendered":"Benckova, M. et al. published their research in Chemical Papers in 1989 | CAS: 45887-08-9"},"content":{"rendered":"<p>Synthesis and reactivity of enamines in pyridine series was written by Benckova, M.;Vegh, D.;Kovac, J.;Friedl, Z.. And the article was included in Chemical Papers in 1989.<a href=\"https:\/\/www.ambeed.com\/products\/45887-08-9.html\">Safety of 3-(1H-Pyrazol-3-yl)pyridine<\/a> This article mentions the following:<\/p>\n<p>The preparation of (<em>E<\/em>)-RCH:CHNMe<sub>2<\/sub> (R = substituted pyridyl) by the reaction of suitably substituted picolines, lutidines, and collidines with Me<sub>2<\/sub>NCH(OMe)<sub>2<\/sub> was described. By the same method enamino ketones derived from acetylpyridines were prepared The rotational barriers of these enamino ketones were measured by dynamic NMR spectroscopy. The enamino ketones were cyclized with N<sub>2<\/sub>H<sub>4<\/sub> and NCCH<sub>2<\/sub>CONMe<sub>2<\/sub>. E.g., (<em>E<\/em>)-R<sup>1<\/sup>COCH:CHNMe<sub>2<\/sub> (R<sup>1<\/sup> = 2-pyridyl) gives pyrazole <strong>I<\/strong> and pyridinone <strong>II<\/strong>, resp. In the experiment, the researchers used many compounds, for example, 3-(1H-Pyrazol-3-yl)pyridine (cas: 45887-08-9<a href=\"https:\/\/www.ambeed.com\/products\/45887-08-9.html\">Safety of 3-(1H-Pyrazol-3-yl)pyridine<\/a>).<\/p>\n<p>3-(1H-Pyrazol-3-yl)pyridine (cas: 45887-08-9) belongs to pyrazole derivatives. Pyrazoles, a five-membered heterocycle containing two adjacent nitrogen atoms, are the core structures found in a number of molecules that possess a wide range of pharmaceutical and agricultural activities. The pyrazole ring is resistant to oxidation and reduction but the groups, such as alkyl and formyl attached to the ring, are oxidized to respective acids. Only electrolytic oxidation, ozonolysis, and a strong base cause ring opening.<a href=\"https:\/\/www.ambeed.com\/products\/45887-08-9.html\">Safety of 3-(1H-Pyrazol-3-yl)pyridine<\/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-(1H-Pyrazol-3-yl)pyridine (cas: 45887-08-9) belongs to pyrazole derivatives. Pyrazoles, a five-membered heterocycle containing two adjacent nitrogen atoms, are the core structures found in a number of molecules that possess a wide range of pharmaceutical and agricultural activities. The pyrazole ring is resistant to oxidation and reduction but the groups, such as alkyl and formyl attached to the ring, are oxidized to respective acids. Only electrolytic oxidation, ozonolysis, and a strong base cause ring opening.<a href=\"https:\/\/www.ambeed.com\/products\/45887-08-9.html\">Safety of 3-(1H-Pyrazol-3-yl)pyridine<\/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-11879","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>Benckova, M. et al. published their research in Chemical Papers in 1989 | CAS: 45887-08-9 | pyrazoles-derivatives<\/title>\n<meta name=\"description\" content=\"Synthesis and reactivity of enamines in pyridine series was written by Benckova, M.;Vegh, D.;Kovac, J.;Friedl, Z.. And the article was included in Chemical Papers in 1989.Safety of 3-(1H-Pyrazol-3-yl)pyridine This article mentions the following:\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.pyrazoles-derivatives.com\/?p=11879\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Benckova, M. et al. published their research in Chemical Papers in 1989 | CAS: 45887-08-9 | pyrazoles-derivatives\" \/>\n<meta property=\"og:description\" content=\"Synthesis and reactivity of enamines in pyridine series was written by Benckova, M.;Vegh, D.;Kovac, J.;Friedl, Z.. 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