839731-88-3Relevant articles and documents
Access to Chiral Hydropyrimidines through Palladium-Catalyzed Asymmetric Allylic C?H Amination
Wang, Pu-Sheng,Shen, Meng-Lan,Wang, Tian-Ci,Lin, Hua-Chen,Gong, Liu-Zhu
supporting information, p. 16032 - 16036 (2017/11/23)
A palladium-catalyzed asymmetric intramolecular allylic C?H amination controlled by a chiral phosphoramidite ligand was established for the preparation of various substituted chiral hydropyrimidinones, the precursors of hydropyrimidines, in high yields with high enantioselectivities. In particular, dienyl sodium N-sulfonyl amides bearing an arylethene-1-sulfonyl group underwent a sequential allylic C?H amination and intramolecular Diels–Alder (IMDA) reaction to produce chiral fused tricyclic tetrahydropyrimidinone frameworks in high yields and with high levels of stereoselectivity. Significantly, this method was used as the key step in an asymmetric synthesis of letermovir.
A Simple and practical approach to the dibenzo[ c, f ]thiazolo[3,2- a ]azepines: A novel fused tetracyclic azepine system
Palma, Alirio,Galeano, Nelson,Bahsas, Ali
experimental part, p. 1291 - 1302 (2010/07/09)
A novel set of functionalized dibenzo[c,f]thiazolo[3,2-a]azepines, which is a new ring system, were successfully synthesized in a four-step protocol starting from readily available substituted N-allyl-N-benzylanilines. The synthesis of the title compounds
New and efficient synthesis of 6,11-dihydro-11-ethyl-5H-dibenz[b,e]azepine derivatives starting from N-benzylanilines via amino-Claisen and Friedel-Crafts methodologies
Palma, Alirio,Barajas, Jacqueline Jaimes,Kouznetsov, Vladimir V.,Stashenko, Elena,Bahsas, Ali,Amaro-Luis, Juan
, p. 2721 - 2724 (2007/10/03)
New and efficient synthesis of 6,11-dihydro-11-ethyl-5H-dibenz[b,e]azepine derivatives, using the key steps of BF3·OEt 2-catalyzed aromatic amino-Claisen rearrangement and the intramolecular alkene Friedel-Crafts alkylation, is reported.