通过四唑并[1,5- b ]哒嗪,四唑并[1,5- a ]嘧啶和四唑并[1,5- a ]吡啶的热解反应可轻松合成吡唑和吡咯
摘要:
描述了一种简单且高产率的吡唑和吡咯的制备方法。四唑并[1,5- b ]哒嗪,四唑并[1,5- a ]嘧啶和四唑并[1,5- a ]吡啶的热解使环易于收缩,从而提供了氰基吡唑和氰基吡咯杂环的简便制备方法。由于氰基是其他官能团的通用前体,因此该反应对于构建各种吡唑和吡咯特别感兴趣。起始四唑衍生物的简单制备,所采用的相对温和的条件以及非常短的反应时间使这种通用的方法具有很高的合成实用性,可用于小规模和大规模的制备。
Reaction of N-fluoropyridinium fluoride with isonitriles and TMSN3: a convenient one-pot synthesis of tetrazol-5-yl pyridines
作者:Alexander S. Kiselyov
DOI:10.1016/j.tetlet.2005.05.066
日期:2005.7
Reaction of N-fluoropyridiniumfluoride generated in situ with a series of isonitriles and TMSN3 led to the formation of the corresponding tetrazol-5-yl pyridines in good yields (37–84%). A similar reaction sequence for quinoline yielded the respective derivatives of 2-quinoline. The proposed reaction mechanism involves the intermediate formation of a highly reactive carbene species.
[EN] SUBSTITUTED 1,2,3-TRIAZOLES AS NR2B-SELECTIVE NMDA MODULATORS<br/>[FR] 1,2,3-TRIAZOLES SUBSTITUÉS UTILISÉS COMME MODULATEURS DE NMDA SÉLECTIFS DE NR2B
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2017139428A1
公开(公告)日:2017-08-17
Substituted 1,2,3-triazoles as NR2B receptor ligands. Such compounds may be used in NR2B receptor modulation and in pharmaceutical compositions and methods for the treatment of disease states, disorders, and conditions mediated by NR2B receptor activity.
Compounds of the formula (I) wherein the substituents are as defined in claim 1, useful as a pesticides, especially as herbicides.
式(I)的化合物,其中取代基如权利要求1所定义,作为杀虫剂特别是除草剂时有用。
Fused Tetrazoles as Azide Surrogates in Click Reaction: Efficient Synthesis of N-Heterocycle-Substituted 1,2,3-Triazoles
作者:Buddhadeb Chattopadhyay、Claudia I. Rivera Vera、Stepan Chuprakov、Vladimir Gevorgyan
DOI:10.1021/ol100745d
日期:2010.5.7
It has been shown that various pyrido-, quinolino-, pyrazino-, and quinoxalinotetrazoles can be used efficiently as azide components in Cu-catalyzed clickreaction with alkynes. This method allows for efficient synthesis of a wide variety of N-heterocyclic derivatives of 1,2,3-triazoles.
catalytic amount of Fe(TPP)Cl and Zn dust. The reaction precludes the traditional, more favored click reaction between an organic azide and alkynes, and instead proceeds by an unprecedented metalloradicalactivation. The method is anticipated to advance access to the construction of important basic nitrogen heterocycles, which will in turn enable discoveries of new drug candidates.