Hideo Togo   Aya Saito   Kazuhiro Yoshida   
Synthesis 54(13) 3114-3124 Jun 2022 [Refereed]
Abstract
Treatment of N-propargyl-N′-tosylhydrazines with molecular iodine (I2) in the presence of NaHCO3 under warming conditions gave efficiently the corresponding 5-substituted 4-iodo-1-tosylpyrazoles in good to moderate yields. In addition, t...
Various aromatic and aliphatic aldehydes were converted into the corresponding 2-aryl and 2-alkyl-2-oxazolines, respectively, in good to high yields by reaction with 2-aminoethanol and 1,3-diiodo-5,5-dimethylhydantoin. Moreover, chiral bis-2-oxazo...
3,4-Dihydro-2,1-benzothiazine 2,2-dioxides were easily obtained in good yields by the reaction of N-methyl 2-arylethane-sulfonamides with 1,3-diiodo-5,5-dimethylhydantoin (DIH) under irradiation with a tungsten lamp. When N-benzyl 2-phenylethane-s...
Thiazoles were obtained in high yields by the reaction of 1H-1-(1'-alkynyl)-5-methyl-1,2,3-benziodoxathiole 3,3-dioxides, which were easily prepared from the reaction of 1H-1-hydroxy-5-methyl-1,2,3-benziodoxathiole 3,3-dioxide and 1-alkynes, ...
Various 2-imidazolines were prepared in high yields by reacting aldehydes and ethylenediamines with 1,3-diiodo-5,5-dimethylhydantoin. Moreover, chiral 1,3-bis(imidazolin-2'-yl)benzene and 2,6-bis(imidazolin-2'-yl)pyridines, which function as a chi...