Pyridyl-tetrahydropyrans and process for preparing same
申请人:Imperial Chemical Industries Limited
公开号:US04048180A1
公开(公告)日:1977-09-13
The present invention deals with intermediate compounds, namely 4-(2'-, 3'- and 4'-pyridyl)-tetrahydropyrans and a process for their preparation. These compounds are prepared by reacting a 2'-haloethyl-3-(pyridyl)propyl ether with an alkali metal amide at -80.degree. C. to 40.degree. C.
A general transition-metal-free photoinduced acetalation-pyridylation of alkenes using diethoxyacetic acid and cyanopyridine was developed under mild conditions. By employing 4CzIPN as the photocatalyst and Cs2CO3 as the base, a diverse range of styrene derivatives and cyanopyridines worked well to give the desired products. The versatility of this method is highlighted by its application in the construction
在温和条件下开发了一种使用二乙氧基乙酸和氰基吡啶进行烯烃的一般无过渡金属光致缩醛化-吡啶化。通过使用 4CzIPN 作为光催化剂和 Cs 2 CO 3作为碱,多种苯乙烯衍生物和氰基吡啶可以很好地产生所需的产品。该方法的多功能性突出体现在其在各种官能团的构建和药物的后期修饰中的应用。重要的是,一些合成的化合物在体外显示出良好的抗肿瘤活性,表明该方案对抗肿瘤药物开发具有重要意义和潜力。
Tchitchibabine, Bulletin de la Societe Chimique de France, 1938, vol. <5>5, p. 436,441
作者:Tchitchibabine
DOI:——
日期:——
DE676114
申请人:——
公开号:——
公开(公告)日:——
Hey; Wibaut, Recueil des Travaux Chimiques des Pays-Bas, 1953, vol. 72, p. 522,524,525