Catalyzed by ytterbium(Ⅲ) triflate hydrate [Yb(OTf)3.xH2O], the Michael addition and cycloeondensation of α,β-unsaturated ketones with active methylene compo
A new copper(II) complex [Cu2(DMF)(H2O)(C7H4NO4)2(C7H3NO4)]2·3.5DMF has been synthesized and its structure was determined by single-crystal X-ray diffraction.T
A series of novel hindered amine light stabilizers containing an N-halamine moiety were designed and synthesized. Their structures were characterized by FT-IR,
The title compound 2, 4-chloromethyl-3-anilino-2-(4-methyl-benzoylimido)thiazole, was prepared by the reaction of 1-p-methylbenzoyl-3-phenylaminothiourea 1 with
2-Thioxo-1,2-dihydrobenzo[d][1,3]thiazin-4-one (TDBTO), a new thiazin-one derivative, was synthesized and investigated.The crystal structure of TDBTO (C8H5NOS2,
Highly efficient palladium-catalyzed Heck coupling of aryl nonaflates with electron-rich vinyl ethers, and enamides is described. These reactions afforded exclu
A novel benzo [1,5] oxazepin-4-one skeleton compound and its four derivatives were synthesized effectively from 1,5-difluoro-2,4-dinitrobenzene (DFDNB) under mi
The insertion reaction mechanism of CF2 with CH2O was investigated at the B3LYP/6-311G(d)//MP2/6-311G(d) level.The geometric conformations at each stationary po