(CTA)<sub>3</sub>[SiW<sub>12</sub>]–Li<sup>+</sup>–MMT: a novel, efficient and simple nanocatalyst for facile and one-pot access to diverse and densely functionalized 2-amino-4H-chromene derivatives via an eco-friendly multicomponent reaction in water
作者:Esmayeel Abbaspour-Gilandeh、Mehraneh Aghaei-Hashjin、Asieh Yahyazadeh、Hadi Salemi
DOI:10.1039/c6ra09818e
日期:——
the procedure, it was feasible to synthesize 2-amino-3-cyano-pyrano[3,2-c]chromen-5(4H)-one (4a–4y), 2-amino-3-cyano-pyrano[3,2-c]quinolin-5(4H)-one (6a–6s), 2-amino-3-cyano-7,8-dihydro-4H-chromen-5(6H)-one (8a–8u), 2-amino-3-cyano-pyrano[4,3-b]pyran-5(4H)-one (12a–12f), 2-amino-3-cyano-pyrano[3,2-c]pyridine-6(5H)-one (13a–13f), and 1H-pyrano[2,3-d]pyrimidine-2,4(3H,5H)-dione (14a–14f). The structure
一个简单的,容易且高效一锅合成药学有趣多样种类官能2-氨基-4-的ħ色烯由芳香醛,丙二腈(或氰基乙酸乙酯)的一个简单的三组分反应和多样化的烯醇化的C-据报道,在催化量的(CTA)3 [SiW 12 ] –Li + –MMT存在下,H活化的酸性化合物是一种新颖,环保,可重复使用且很有希望的纳米催化剂,可以在回流水中进行反应。根据该程序,合成2-氨基-3-氰基-吡喃并[3,2 - c ] chromen-5(4 H)-一(4a–4y),2-氨基-3-氰基-吡喃是可行的。[3,2 - c ]喹啉-5(4H)一(6a–6s),2-amino-3-cyano-7,8-dihydro-4 H -chromen-5(6 H)一(8a–8u),2-amino-3-cyano- pyrano [4,3- b ] pyran-5(4 H)-one(12a-12f),2-amino-3-cyano-pyrano