83794-09-6Relevant articles and documents
NHC-catalyzed [4 + 2] annulations of allenoates and 2,3-dioxopyrrolidine derivatives
Chen, Yangxu,Li, Tuanjie,Lu, Fangfang,Song, Xue,Yao, Changsheng,Yu, Chenxia,Zhang, Kai
, p. 1219 - 1225 (2022/02/21)
A facile NHC-catalyzed [2 + 4] annulation of allenoates with 2,3-dioxypyrrolidine derivatives was discovered, which paved a new avenue for the construction of highly substituted pyranopyrrole with moderate to good yields, high atom economy and mild reaction conditions. This journal is
η6-Arene CH?O Interaction Directed Dynamic Kinetic Resolution – Asymmetric Transfer Hydrogenation (DKR-ATH) of α-Keto/enol-Lactams
Chen, Yong,Lin, Yicao,Luo, Zhonghua,Sun, Guodong,Wang, Zhongqing,Wu, Shuming,Zhang, Lei
, p. 3030 - 3034 (2021/06/01)
A dynamic kinetic resolution – asymmetric transfer hydrogenation (DKR-ATH) methodology of α-keto/enol-lactams was developed. We also propose a possible catalytic mechanism evolving a transition state stabilized by η6-arene CH?O interaction. The efficient approach can be applied to a wide range of substrates including non-aryl ones which would be difficult to prepare by other asymmetric reduction methods. (Figure presented.).
Preparation of Compounds in the New DipyrroloPyridine Series from 1-Benzylidene-2,3-dioxopyrrolidines. A Variation of the Hantzsch Sythesis.
Snyder, Carroll A.,Thorn, Mark A.,Klijanowicz, James E.,Southwick, Philip L.
, p. 603 - 607 (2007/10/02)
Treatment of easily prepared 1-substituted-4-benzylidene-2,3-dioxopyrrolidines with ammonium formate produces 1,2,4,6,7,8-hexahydro-2,6-disubstituted-8-aryldipyrrolopyridine-3,5-diones (II), usually in yields of 50 to 60percent.Aromatizatio
