2406-17-9Relevant articles and documents
Bis(trifluoromethanesulfonimide) (BSI): Acidity and application to hydrofunctionalization as a Br?nsted acid catalyst
Takagi, Ryukichi,Sakai, Yuichiro,Duong, Duyen Thi
, (2021/03/23)
A binaphthyl derivative, bearing bis(trifluoromethanesulfonimide) (BSI) moiety, was developed as a novel Br?nsted acid. Computational prediction of the pKa value of BSI indicated its classification as a strong Br?nsted acid. BSI catalyzed the h
ZnI2/Zn(OTf)2-TsOH: A versatile combined-Acid system for catalytic intramolecular hydrofunctionalization and polyene cyclization
Chou, Ting-Hung,Yu, Bo-Hung,Chein, Rong-Jie
supporting information, p. 13522 - 13525 (2019/11/14)
A mild and efficient combined-Acid system using a zinc(ii) salt [ZnI2 or Zn(OTf)2] and p-Toluene sulfonic acid (TsOH) was investigated for catalytic cationic cyclizations, including intramolecular hydrocarboxylation, hydroalkoxylation, hydroamination, hydroamidation, hydroarylation and polyene cyclizations. This reaction provides easy access to five-and six-membered O-and N-containing saturated heterocyclic compounds, tetrahydronaphthalene derivatives and polycyclic skeletons in excellent yield with perfect Markovnikov selectivity and under mild conditions. The operational simplicity, broad applicability, and use of inexpensive commercially available catalysts make this protocol superior to existing methodologies.
Catalytic Synthesis of Saturated Oxygen Heterocycles by Hydrofunctionalization of Unactivated Olefins: Unprotected and Protected Strategies
Shigehisa, Hiroki,Hayashi, Miki,Ohkawa, Haruna,Suzuki, Tsuyoshi,Okayasu, Hiroki,Mukai, Mayumi,Yamazaki, Ayaka,Kawai, Ryohei,Kikuchi, Harue,Satoh, Yui,Fukuyama, Akane,Hiroya, Kou
supporting information, p. 10597 - 10604 (2016/09/04)
A mild, general, and functional group tolerant intramolecular hydroalkoxylation and hydroacyloxylation of unactivated olefins using a Co(salen) complex, an N-fluoropyridinium salt, and a disiloxane reagent is described. This reaction was carried out at ro
