A convenient synthesis of pyrrolo-annelated 1,3-diselenole-2-thione and 1,3-diselenol-2-one derivatives via dipyrrolo-annelated 1,2,5,6-tetraselenocine derivatives
摘要:
AbstractThe reaction of 2,5‐dimethyl‐3,4‐diselenocyanato‐1H‐pyrrole by NaBH4 or NaOCH3 led to tetraselenide 7 in quantitative yield. Treatment of protected tetraselenide 8 with LiAlH4 afforded the aluminum complex intermediate that was converted into pyrrole‐annelated 1,3‐diselenolo‐2‐thione 9 in excellent yield. Similarly, treatment of tetraselenide 8 with LiAlH4 followed by TFA afforded 1,2‐diselenol intermediate that was converted into pyrrole‐annelated 1,3‐diselenolo‐2‐one 10 upon treatment of diimidazole carbonate. J. Heterocyclic Chem., (2011).
A convenient synthesis of pyrrolo-annelated 1,3-diselenole-2-thione and 1,3-diselenol-2-one derivatives via dipyrrolo-annelated 1,2,5,6-tetraselenocine derivatives
摘要:
AbstractThe reaction of 2,5‐dimethyl‐3,4‐diselenocyanato‐1H‐pyrrole by NaBH4 or NaOCH3 led to tetraselenide 7 in quantitative yield. Treatment of protected tetraselenide 8 with LiAlH4 afforded the aluminum complex intermediate that was converted into pyrrole‐annelated 1,3‐diselenolo‐2‐thione 9 in excellent yield. Similarly, treatment of tetraselenide 8 with LiAlH4 followed by TFA afforded 1,2‐diselenol intermediate that was converted into pyrrole‐annelated 1,3‐diselenolo‐2‐one 10 upon treatment of diimidazole carbonate. J. Heterocyclic Chem., (2011).
A convenient synthesis of pyrrolo-annelated 1,3-diselenole-2-thione and 1,3-diselenol-2-one derivatives via dipyrrolo-annelated 1,2,5,6-tetraselenocine derivatives
作者:Joon Bum Park、Ja Hong Kim、Kyukwan Zong
DOI:10.1002/jhet.676
日期:2011.7
AbstractThe reaction of 2,5‐dimethyl‐3,4‐diselenocyanato‐1H‐pyrrole by NaBH4 or NaOCH3 led to tetraselenide 7 in quantitative yield. Treatment of protected tetraselenide 8 with LiAlH4 afforded the aluminum complex intermediate that was converted into pyrrole‐annelated 1,3‐diselenolo‐2‐thione 9 in excellent yield. Similarly, treatment of tetraselenide 8 with LiAlH4 followed by TFA afforded 1,2‐diselenol intermediate that was converted into pyrrole‐annelated 1,3‐diselenolo‐2‐one 10 upon treatment of diimidazole carbonate. J. Heterocyclic Chem., (2011).