40473-50-5Relevant articles and documents
Organic Br?nsted acid-catalyzed cycloadditions of o-quinone methides with 1, 3-dicarbonlys: Facile access to xanthenones and chromanones
Kokkuvayil Vasu, Radhakrishnan,Parameswaran, Sasikumar,Puthiyaparambath, Sharathna,Suresh Varma, Sanjay,Thoppe Sivakumar, Priyadarshini
, (2021/06/27)
The in-situ generation of o-quinone methides and their inverse-electron-demand Diels–Alder reaction in the presence of pentacarboxycyclopentadiene—an organic Br?nsted acid—has been reported. The synthesis of xanthenones and chromanones in good to excellen
Ruthenium-Catalyzed Direct Asymmetric Reductive Amination of Diaryl and Sterically Hindered Ketones with Ammonium Salts and H2
Hu, Le' an,Zhang, Yao,Zhang, Qing-Wen,Yin, Qin,Zhang, Xumu
supporting information, p. 5321 - 5325 (2020/02/28)
A Ru-catalyzed direct asymmetric reductive amination of ortho-OH-substituted diaryl and sterically hindered ketones with ammonium salts is reported. This method represents a straightforward route toward the synthesis of synthetically useful chiral primary diarylmethylamines and sterically hindered benzylamines (up to 97 % yield, 93–>99 % ee). Elaborations of the chiral amine products into bioactive compounds and a chiral ligand were demonstrated through manipulation of the removable and convertible -OH group.
Efficient visible-light photocatalytic aerobic oxidation of cyclic sulfamides to imines
Ming, Zong-Yao,Li, Kang-Rui,Meng, Fan-Jie,Shi, Lei,Jiang, Wen-Feng
supporting information, (2020/06/17)
A highly efficient photocatalytic aerobic oxidation of cyclic sulfamides to synthesize cyclic N-sulfonyl imines with Ir(ppy)2(dtbpy)PF6 as photocatalyst is reported. These environmentally friendly transformations exihibit good to excellent isolated yields and good generality with respect to both five-membered and six-membered cyclic sulfamides.