14165-85-6Relevant academic research and scientific papers
Synthesis, cytotoxicity and QSAR study of N-tosyl-1,2,3,4- tetrahydroisoquinoline derivatives
Pingaew, Ratchanok,Worachartcheewan, Apilak,Nantasenamat, Chanin,Prachayasittikul, Supaluk,Ruchirawat, Somsak,Prachayasittikul, Virapong
, p. 1066 - 1077 (2013/09/24)
1-Substituted-N-tosyl-1,2,3,4-tetrahydroisoquinoline analogs (4a-4l) were synthesized using the modified Pictet-Spengler reaction and evaluated for cytotoxicity. All tetrahydroisoquinolines displayed cytotoxicity against MOLT-3 cell lines, except for p-me
Tungstophosphoric acid catalyzed synthesis of N-sulfonyl-1,2,3,4- tetrahydroisoquinoline analogs
Pingaew, Ratchanok,Prachayasittikul, Supaluk,Ruchirawat, Somsak,Prachayasittikul, Virapong
, p. 941 - 944 (2013/09/24)
An operationally simple and eco-friendly protocol has been developed for the synthesis of N-sulfonyl-1,2,3,4-tetrahydroisoquinolines 3 using the modified Pictet-Spengler reaction of N-sulfonylphenylethylamines 1 and various aldehydes 2 in the presence of
Efficient and practical one-pot conversions of n- tosyltetrahydroisoquinolines into isoquinolines and of N-tosyltetrahydro-β- carbolines into β-carbolines through tandem β-elimination and aromatization
Dong, Jing,Shi, Xiao-Xin,Yan, Jing-Jing,Xing, Jing,Zhang, Qiang,Xiao, Sen
experimental part, p. 6987 - 6992 (2011/02/24)
An efficient, practical, and general method for conversions of N-tosyltetrahydroisoquinolines (N-tosyl-THIQs) into isoquinolines and of N-tosyltetrahydro-β-carbolines (N-tosyl-THBCs) into β-carbolines is described. Treatment of N-tosyl-THIQs or N-tosyl-THBCs with base in dimethyl sulfoxide afforded dihydroisoquinolines or dihydro-β-carbolines as intermediates, and these were then oxidized in situ by molecular oxygen to furnish isoquinolines or β-carbolines in good to high yields. Both one-pot conversions occurred through tandem β-elimination and aromatization. An efficient method for conversions ofN-tosyltetrahydroisoquinolines (N-tosyl-THIQs) and N-tosyltetrahydro-β-carbolines (N-tosyl-THBCs) into isoquinolines and β-carbolines is described. Treatment ofN-tosyl-THIQs or N-tosyl-THBCs with base affords dihydroisoquinolines or dihydro-β- carbolines. These can be oxidized in situ by molecular oxygen to furnish isoquinolines or β-carbolines. Copyright
