The hemilabile P^N ligand MeDalphos enables access to a wide range of stable gold(i) π-complexes with unbiased alkenes and alkynes, as well as electron-rich alkenes and for the first time electron-poor ones.
Direct Synthesis of Fused Thienoindoles via Base Promoted Double C−H Sulfuration with Elemental Sulfur
作者:Shanping Chen、Kai Hu、Wei Feng、Guojiang Mao、Yuxia Li、Guo‐Jun Deng
DOI:10.1002/adsc.202300443
日期:2023.6.13
indoles and elemental sulfur has been reported. The present approach produces a range of structurally valuable fused thienoindoles in 51–78% yield under transition-metal-free conditions, which may have potential applications in pharmaceutical industry and organic functional materials. In this work, the double C−S bonds formation is achieved via base promoted direct sulfuration of C−H bonds with elemental
An efficientcopper(I) iodide‐catalyzed sulfenylation of maleimides and related 3‐indolylmaleimides with thiols has been developed in the presence of fluoroboric acid. Several 3‐thiomaleimides and 3‐indolyl‐4‐thiomaleimides were obtained with good yields under ligand‐free conditions. The methods are simple, practical and show good functional group tolerance.
Iodine-Promoted C(sp
2)–H Thiolation of Maleimides with Dimethyl Sulfoxide and Thiols
作者:Sheng-Yin Zhao、Hong-Ru Tan、Lun Wang、Jia-Nan Zhu、Zhen-Hua Yang
DOI:10.1055/s-0037-1609585
日期:2018.10
Iodine-promoted C(sp 2)–H methylthiolation of maleimides using DMSO as synthon has been developed to afford 3-methylthiomaleimides in moderate yields under metal-free conditions. In addition, 3-thiomaleimides were synthesized from maleimides and thiols in the presence of iodine and triethylamine. The methods are simple and efficient for the formation of C–Sbond. Iodine-promoted C(sp 2)–H methylthiolation