2608-11-9Relevant academic research and scientific papers
Cu-mediated one-pot three-component synthesis of 3-N-substituted 1,4,2-benzodithiazine 1,1-dioxide derivatives
Dong, Wei,Ge, Zemei,Wang, Xin,Li, Ridong,Li, Runtao
, (2020/07/03)
A novel and efficient copper-catalyzed one-pot procedure for the synthesis of 3-N-substituted 1,4,2-benzodithiazine 1,1-dioxide derivatives from 2-halobenzenesulfonamides, amines and CS2 is described. The reaction proceeds through Ullmann-type S-arylation, intramolecular addition of NH2 with C[dbnd]S and dehydrosulfide, which provides a new and useful strategy for construction of cyclic aromatic sulfonamides.
A catalyst-free 1,4-Michael-type reaction of in situ generated ortho-quinone methides (o-QMs) with dithiocarbamic acid salts in water
Aryanasab, Fezzeh,Shabanian, Meisam
, p. 1703 - 1713 (2019/04/17)
Abstract: A catalyst-free conjugate addition of dithiocarbamic acid salts to in situ generated ortho-quinone methides (o-QMs) was investigated for the first time. Several dithiocarbamate derivatives of 4-hydroxycoumarine, 4-hydroxypyrone and 2-naphthol were synthesized in moderate-to-good yields in water at room temperature. Graphical abstract: [Figure not available: see fulltext.] Catalyst-free addition of dithiocarbamic acid salts to in situ generated o-QMs in water at room temperature.
Investigation of the reaction of dithiocarbamic acid salts with trimethyl orthoformate and styrene epoxide
Ziyaei Halimehjani, Azim,Hajilou Shayegan, Mojtaba,Poshteh, Shiva Shakori,Amani, Vahid,Notash, Behrouz,Hashemi, Mohammad M.
supporting information, p. 7124 - 7127 (2015/12/05)
The reaction of dithiocarbamic acid salts with trimethyl orthoformate in the presence of BF3·OEt2 was investigated to give 4-(N,N-dialkyldithiocarbamato)-2-dialkyliminio-1,3-dithietane tetrafluoroborates in good yields. Additionally, a one-pot procedure for the synthesis of 2-iminium-1,3-dithiolanes from the BF3·OEt2 catalyzed reaction of dithiocarbamic acid salts with styrene epoxide is described.
