14479-58-4Relevant articles and documents
5-arylidene derivatives of meldrum's acid as synthons in pyrano[4,3-b]pyran synthesis
Palasz, Aleksandra,Jelska, Katarzyna,Ozog, Monika,Serda, Pawel
, p. 481 - 488 (2007)
The reactions of 5-arylidene derivatives of Meldrum's acid with ethyl vinyl ether or N-vinyl-2-oxazolidinone yielded trans-trans-(2,4:4,7)-pyrano[4,3-b] pyrans, cis-trans-(2,4:4,7)-pyrano[4,3-b]pyrans, or diastereoisomeric mixtures of pyrano[4,3-b]pyrans
Aza-Wittig Reaction with Nitriles: How Carbonyl Function Switches from Reacting to Activating
Tukhtaev, Hamidulla B.,Ivanov, Konstantin L.,Bezzubov, Stanislav I.,Cheshkov, Dmitry A.,Melnikov, Mikhail Ya.,Budynina, Ekaterina M.
supporting information, p. 1087 - 1092 (2019/02/19)
Transformations of α-EWG-substituted (electron-withdrawing group, EWG) γ-azidobutyronitriles proceeding via unusual aza-Wittig reactions between the phosphazene and nitrile functions and affording pyrrole-derived iminophosphazenes were developed. α-EWGs w
Knoevenagel condensation catalyzed by novel Nmm-based ionic liquids in water
Xu, Hao,Pan, Liyang,Fang, Xiaomin,Liu, Baoying,Zhang, Wenkai,Lu, Minghua,Xu, Yuanqing,Ding, Tao,Chang, Haibo
supporting information, p. 2360 - 2365 (2017/05/29)
A series of novel N-methyl morpholine (Nmm) based ionic liquids with 1,2-propanediol group were synthesized and used as catalysts for Knoevenagel condensation at room temperature in water. Under the effect of the catalyst, various aldehydes or aliphatic ketones could react with a wide range of activated methylene compounds well, including malononitrile, alkyl cyanoacetate, cyanoacetamide, β-diketone, barbituric acid, 2-arylacetonitrile and thiazolidinedione. Furthermore, most of the products could be separated just by filtrating and washing with water. Additionally, the catalyst is recyclable and applicable for the large-scale synthesis.