25917-49-1Relevant articles and documents
Organic reactions in ionic liquids: Ionic liquid-accelerated cyclocondensation of α-tosyloxyketones with 2-aminopyridine
Xie, Yuan-Yuan,Chen, Zhen-Chu,Zheng, Qin-Guo
, p. 1505 - 1508 (2002)
The room temperature ionic liquid n-butylpyridinium tetrafluoroborate (BPyBF4) is used as a 'green' recyclable alternative to classical molecular solvents for the cyclocondensation of α-tosyloxyketones with 2-aminopyridine. Significant rate enh
Modified one-pot multicomponent diastereoselective synthesis of trans-2,3-Dihydrofuro[3,2-c]coumarins via in situ-generated α- tosyloxyketones
Kumar, Ravi,Wadhwa, Deepak,Hussain, Khalid,Prakash, Om
, p. 1802 - 1807 (2013)
A modified protocol for diastereoselective synthesis of differently substituted trans-2,3-dihydrofuro[3,2-c]coumarins is developed via, a one-pot multicomoponent reaction starting from aromatic aldehydes, 4-hydroxycoumarin, and α-tosyloxyacetophenones wit
Synthesis method of alpha-carbonyl sulfonate and catalyst used in synthesis method
-
Paragraph 0076-0086, (2021/04/17)
The invention provides a nitrogen and carbon co-doped Nb2O5 catalyst for synthesizing alpha carbonyl sulfonate, a preparation method of the nitrogen and carbon co-doped Nb2O5 catalyst, and a synthesizing method of the alpha carbonyl sulfonate by using the catalyst under the driving of visible light. Based on the total weight of the catalyst, the content of nitrogen is 0.01 wt%-1wt%; the content of the carbon is 0.01 wt% to 1.5 wt%. The catalyst provided by the invention is used for preparing alpha-carbonyl sulfonate through olefin aerobic oxidation, the reaction condition is mild, oxygen is used as an oxidant, and other oxidants are not needed. All the raw materials of the catalyst are rich in resource and low in price, and the catalyst can be recycled without inactivation and is very stable to air, water and heat.
A convenient [hydroxy(tosyloxy)iodo]benzene-mediated one-pot synthesis of 2-arylimidazo[2,1-b[benzothiazoles
Sumran, Garima,Aggarwal, Ranjana
, p. 170 - 177 (2015/10/20)
Several 2-arylimidazo[2,1-b]benzothiazoles (4) have been conveniently synthesized in one-pot reactions via α-tosyloxylation of enolizable ketones (1) using [hydroxy(tosyloxy)iodo]benzene 2 in acetonitrile, followed by treatment with 2-amino-6-(substituted