在温和的电解条件下已开发出无试剂的分子内脱氢C–N交叉偶联反应。在这种原子经济和一步经济的一锅法中,有价值的1,2,4-三唑并[4,3- a ]吡啶和相关的杂环化合物可以从可商购的脂族或(杂)芳族醛和2-肼基吡啶。各种官能团都与这种无金属和无氧化剂的方案兼容,可以轻松地以克为单位进行操作。这种新方法被应用于最畅销药物Xanax的合成和后期功能化,以在生物学相关的先导分子中产生化学多样性。
cross-coupling reaction has been developed under mild electrolytic conditions. In this atom- and step-economical one-pot process, valuable 1,2,4-triazolo[4,3-a]pyridines and related heterocyclic compounds could be synthesized efficiently from commercially available aliphatic or (hetero)aromatic aldehydes and 2-hydrazinopyridines. Various functional groups are compatible with this metal- and oxidant-free
在温和的电解条件下已开发出无试剂的分子内脱氢C–N交叉偶联反应。在这种原子经济和一步经济的一锅法中,有价值的1,2,4-三唑并[4,3- a ]吡啶和相关的杂环化合物可以从可商购的脂族或(杂)芳族醛和2-肼基吡啶。各种官能团都与这种无金属和无氧化剂的方案兼容,可以轻松地以克为单位进行操作。这种新方法被应用于最畅销药物Xanax的合成和后期功能化,以在生物学相关的先导分子中产生化学多样性。
Singh, Om V.; Amancharla, Praveen Kumar; Rao, G. Venkateshwar, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2003, vol. 42, # 6, p. 1456 - 1459
作者:Singh, Om V.、Amancharla, Praveen Kumar、Rao, G. Venkateshwar
DOI:——
日期:——
An environmentally benign and solvent-free synthesis of 3-aryl[1,2,4]triazolo[4,3-a]pyridines and 1-aryl-5-methyl[1,2,4]triazolo[4,3-a]quinolines using phenyliodine bis(trifluoroacetate) or iodobenzene diacetate
作者:P. Kumar
DOI:10.1007/s10593-012-0899-0
日期:2012.1
A simple, solvent-free and effective method for oxidative cyclization of 2-pyridyl-and 2-quinolyl-hydrazones with phenyliodine bis(trifluoroacetate) and iodobenzene diacetate to the corresponding 3-aryl[1,2,4]triazolo[4,3-a]pyridines and 1-aryl[1,2,4]triazolo[4,3-a]quinolines is described. All reactions were characterized by short reaction times and high yields at room temperature. All reactions were carried out by just grinding the reaction components.
Singh; Muthukrishnan; Sundaravadivelu, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2001, vol. 40, # 3, p. 262 - 265
作者:Singh、Muthukrishnan、Sundaravadivelu
DOI:——
日期:——
Kidwai, Mazaahir; Kohli, Seema; Goel, A. K., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1998, vol. 37, # 10, p. 1063 - 1065
作者:Kidwai, Mazaahir、Kohli, Seema、Goel, A. K.、Dubey, M. P.