A scalable electrochemical dehydrogenative cross-coupling of P(O)H compounds with RSH/ROH
作者:Yujun Li、Qi Yang、Liquan Yang、Ning Lei、Ke Zheng
DOI:10.1039/c9cc01378d
日期:——
A practical, scalable electrochemical dehydrogenative cross-coupling of P(O)H compounds with thiols, phenols and alcohols in both an undivided cell and a continuous-flow setup is disclosed. Its broad substrate scope (>50 examples), good functional-group tolerance and scalability (>10 g) show potential for practical synthesis. A preliminary mechanistic study suggests that the phosphorus radicals are
Let the sunshine in! Unactivated alkyl and aryl bromides underwent a light‐enabled reductive radical cyclization in the presence of a dimeric phosphine–gold complex as a photocatalyst (see scheme; X=C(CO2Et)2, NR, O). Sunlight can be used as the energy source for this simple and efficient radical reaction, which does not require potentially hazardous and toxic chemical reagents, such as organostannanes
让阳光照进来!未活化的烷基和芳基溴化物在二聚膦-金络合物作为光催化剂的情况下进行了光活化的还原性自由基环化反应(见方案; X = C(CO 2 Et)2,NR,O)。阳光可以用作此简单有效的自由基反应的能源,该自由基反应不需要潜在危险和有毒的化学试剂,例如有机锡和化学引发剂。
Tf<sub>2</sub>O/DMSO-Promoted P–O and P–S Bond Formation: A Scalable Synthesis of Multifarious Organophosphinates and Thiophosphates
作者:Jian Shen、Qi-Wei Li、Xin-Yue Zhang、Xue Wang、Gui-Zhi Li、Wen-Zuo Li、Shang-Dong Yang、Bin Yang
DOI:10.1021/acs.orglett.0c04127
日期:2021.3.5
HEINICKE J.; BOEHLE I.; TZSCHACH A., J. ORGANOMET. CHEM., 317,(1986) N 1, 11-21
作者:HEINICKE J.、 BOEHLE I.、 TZSCHACH A.
DOI:——
日期:——
Metal-free electrophilic phosphination of electron-rich arenes, arenols and aromatic thiols with diarylphosphine oxides
作者:Tao Yuan、Shenlin Huang、Chun Cai、Guo-ping Lu
DOI:10.1039/c7ob02620j
日期:——
phosphination of arenes, arenols and thiols has been disclosed. This chemistry, in which diaryl(((trifluoromethyl)sulfonyl)oxy)phosphines as a kind of electrophilic phosphination reagents are in situ generated from diarylphosphine oxides, provides an efficient and mild approach for the synthesis of aromatic organophosphorus compounds.