37585-16-3Relevant articles and documents
Synthesis of 3,1-Benzoxazines, 3,1-Benzothiazines and 3,1-Benzoxazepines via N-Arylimino-1,2,3-dithiazoles
Besson, Thierry,Guillaumet, Gérald,Lamazzi, Christelle,Rees, Charles W.
, p. 704 - 706 (1997)
o-Aminobenzyl alcohols are converted in two steps into 3,1-benzoxazines 7 and 3,1-benzothiazines 8, and o-aminophenethyl alcohol is converted into 3,1-benzoxazepine 9.
Access to 5,6-Spirocycles Bearing Three Contiguous Stereocenters via Pd-Catalyzed Stereoselective [4 + 2] Cycloaddition of Azadienes
Fairuz Binte Sheikh Ismail, Siti Nur,Yang, Binmiao,Zhao, Yu
supporting information, p. 2884 - 2889 (2021/05/05)
We present herein a highly diastereo- and enantioselective Pd-catalyzed [4 + 2] cycloaddition of benzofuran-derived azadienes with vinyl benzoxazinanones, which represents a rare highly stereoselective cycloaddition of this class of fused azadienes as a two-atom synthon. The use of a phosphoramidite ligand bearing a chiral secondary amine with a simple biphenyl backbone proved to be the key to construct the novel spirocyclic tetrahydroquinoline scaffold containing three contiguous stereocenters as a single diastereomer in high enantioselectivity.
A Convenient Formal [4+2] Heterocylization Route to Bis(triflyl)tetrahydroquinolines
Lázaro-Milla, Carlos,Almendros, Pedro
supporting information, p. 13534 - 13538 (2021/08/13)
We report the sustainable and efficient synthesis of a new type of quinoline derivatives bearing one or two SO2CF3 groups. The protocol is metal-, catalyst- and irradiation-free, involves the use of readily available and stable precursors, and avoids the formation of side products. Also, the mild conditions of the process allow the tolerance of a wide range of functional groups.