Efficient New Protocol to Synthesize Aromatic and Heteroaromatic Dithioesters
作者:Serge Masson、Isabelle Abrunhosa、Mihaela Gulea
DOI:10.1055/s-2004-822311
日期:——
A very efficient, high yielding procedure to synthesize substituted aromatic and heteroaromatic dithioesters is described. It involves the reaction between (phenylsulfonyl)methyl (hetero)aromatic derivatives and elemental sulfur in basic medium, followed by alkylation.
The organocatalytic alkylation of 2-methyl-N-heteroaromatics with alcohols has been achieved via SN1-type C(sp3)–H functionalization, providing a green and efficient synthesis of indole and ferrocene-functionalized N-heteroaromatics in high yields.
通过S N 1型C(sp 3)–H官能化已经实现了2-甲基-N-杂芳族化合物与醇的有机催化烷基化,从而以高收率提供了绿色高效的吲哚和二茂铁官能化的N-杂芳族化合物的合成。
Efficient 2-sulfolmethyl quinoline formation from 2-methylquinolines and sodium sulfinates under transition-metal free conditions
作者:Fuhong Xiao、Shuqing Chen、Ya Chen、Huawen Huang、Guo-Jun Deng
DOI:10.1039/c4cc07546c
日期:——
An efficient procedure for 2-sulfolmethyl quinoline preparation from 2-methylquinolines and sodium sulfinates under transition-metal free conditions is described. Halogen functional groups were well tolerated to give the corresponding products in good to high yields.
Base-controlled divergent synthesis of vinyl sulfones from (benzylsulfonyl)benzenes and paraformaldehyde
作者:Fuhong Xiao、Yangling Hu、Huawen Huang、Fen Xu、Guo-Jun Deng
DOI:10.1039/d0ob00362j
日期:——
A tuneable metal-free protocol for the selective preparation of α-substituted vinyl sulfone and (E)-vinyl sulfone derivatives has been described. The base played an important role in the selectivity control of transformation.
Sulfonylation of C(sp3)–H bond for synthesis of 2-sulfolmethyl azaarenes catalyzed by TBAI in water
作者:Dao-Qing Dong、Xing Gao、Li-Xia Li、Shuang-Hong Hao、Zu-Li Wang
DOI:10.1007/s11164-018-3573-z
日期:2018.12
A tetrabutylammonium iodide (TBAI)-catalyzed method for synthesis of 2-sulfolmethyl quinolone has been developed. Using water as solvent, a wide range of 2-sulfolmethyl quinolones were obtained in high to excellent yield. In addition, water and TBAI could be reused for five times without significant decrease of the yield of the corresponding product.