19860-20-9Relevant academic research and scientific papers
A RING EXPANSION METHOD FOR THE PREPARATION OF 2,3-DIHYDRO-1,4-BENZOTHIAZINES FROM 2-ARYL-2,3-DIHYDROBENZOTHIAZOLES
Mashraqui, Sabir H.,Kellogg, Richard M.
, p. 1457 - 1460 (1985)
In the presence of KF in dimethylformamide (DMF) 2-aryl-2,3-dihydrobenzothiazoles react with α-haloketones to provide in good yield 2,3-dihydro-2,3-disubstituted-1,4-benzothiazines.
N-Substituted tertiary and O-substituted quaternary carbon stereogenic centers by site-, diastereo- and enantioselective vinylogous Mannich reactions
Silverio, Daniel L.,Fu, Peng,Carswell, Emma L.,Snapper, Marc L.,Hoveyda, Amir H.
supporting information, p. 3489 - 3493 (2015/06/02)
A readily accessible small-molecule phosphine, derived from commercially available starting materials such as an enantiomerically pure amino acid, serves as the precursor to a Ag-based chiral complex that can be prepared and used in situ to promote a vari
