1598385-86-4Relevant academic research and scientific papers
Divergent pathways for reactions of CF3-containing Isobenzofuran-1-ones and amines
Mitobe, Kana,Kawasaki-Takasuka, Tomoko,Agou, Tomohiro,Kubota, Toshio,Yamazaki, Takashi
, p. 36 - 41 (2019)
Unprecedented isobenzofuran-1-ones (phthalides) with CF3 and ethoxy groups both at the 3-position were readily synthesized from the corresponding aromatic 1,2-diesters and reacted with a variety of primary amines to find out convenient conversion to the corresponding γ-lactams, while secondary amines behaved in a totally different manner to affect the net substitution reactions for the EtO moiety, where characteristics of the strongly electron-withdrawing CF3 group was considered to play a significantly important role.
Carbonylation Access to Phthalimides Using Self-Sufficient Directing Group and Nucleophile
Ji, Fanghua,Li, Jianxiao,Li, Xianwei,Guo, Wei,Wu, Wanqing,Jiang, Huanfeng
, p. 104 - 112 (2018/02/19)
Herein we report a novel palladium-catalyzed oxidative carbonylation reaction for the synthesis of phthalimides with high atom- and step-economy. In our strategy, the imine and H2O, which are generated in situ from the condensation of aldehyde and amine, serve as self-sufficient directing group and nucleophile, respectively. This method provides rapid access to phthalimides starting from readily available materials in a one-pot manner. Various phthalimide derivatives are constructed efficiently, including medicinally and biologically active phthalimide-containing compounds.
One-pot cascade trifluoromethylation/cyclization of imides: Synthesis of α-trifluoromethylated amine derivatives
Pandey, Vinay Kumar,Anbarasan, Pazhamalai
, p. 4154 - 4160 (2014/05/20)
Tryptamine- and phenethylamine-derived imides were selectively monotrifluoromethylated using CF3TMS. Subsequent methanesulfonic acid mediated cyclization of the intermediate hemiaminals afforded the α-trifluoromethylated amine derivatives via the formation of trifluoromethylated acyliminium ions, in one pot. The strategy was applicable to the both inter- and intramolecular versions. Furthermore, the utility of the present method was demonstrated through the synthesis of trifluoromethylated analogues of harmicine and crispine A.
