13553-69-0Relevant academic research and scientific papers
[FeIII(F20-tpp)Cl] Is an effective catalyst for nitrene transfer reactions and animation of saturated hydrocarbons with sulfonyl and aryl azides as nitrogen source under thermal and microwave-assisted conditions
Liu, Yungen,Che, Chi-Ming
experimental part, p. 10494 - 10501 (2010/10/21)
[FeIII(F20-tpp)Cl] (F20tpp = meso- tetrakis(pentafluorophenyl)porphyrinato dianion) is an effective catalyst for imido/nitrene insertion reactions using sulfonyl and aryl azides as nitrogen source. Under thermal conditions, aziridination of aryl and alkyl alkenes (16 examples, 60-95% yields), sulfimidation of sulfides (11 examples, 76-96% yields), allylic amidation/amination of α-methylstyrenes (15 examples, 68-83% yields), and amination of saturated C-H bonds including that of cycloalkanes and adamantane (eight examples, 64-80% yields) can be accomplished by using 2 mol % [FeIII(F20- tpp)Cl] as catalyst. Under microwave irradiation conditions, the reaction time of aziridination (four examples), allylic amination (five examples), sulfimidation (two examples), and amination of saturated C-H bonds (three examples) can be reduced by up to 16fold (24-48 versus 1.5-6 h) without significantly affecting the product yield and substrate conversion.
NOVEL SULPHOXIMINE-SUBSTITUTED QUINAZOLINE AND QUINAZOLINE DERIVATIVES AS KINASE INHIBITORS
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Page/Page column 32, (2009/01/20)
The present invention relates to a quinoline or quinazoline derivative having the general formula (A): in which R3, R4, W, Y and Q are indicated in the description and the claims, the use of the compounds of the general formula (A) f
Hypervalent iodine in synthesis XXXII: A novel way for the synthesis of N-sulfonylsulfilimines from sulfides and sulfonamides using iodosobenzene diacetate
Ou, Wei,Chen, Zhen-Chu
, p. 4443 - 4449 (2007/10/03)
A number of N-sulfonylsulfilimines have been prepared through a novel way for the reaction of iodosobenzene diacetate with sulfides and sulfonamides under mild conditions.
Mechanism of the Reaction of Dialkyl Sulphides with Bromamine T in Alkaline Medium
Ruff, Ferenc,Kucsman Arpad
, p. 1075 - 1080 (2007/10/02)
Bromamine T (p-MeC6H4SO2NBr-K+) reacts readily with dialkyl sulphides (R2S) to yield sulphoxides (R2SO) and sulphimides (R2SNTs).The kinetics of the reaction were investigated in buffered alkaline water-methanol solutions.In rate-determining steps HOBr and p-MeC6H4SO2NHBr formed in equilibrium reactions convert dialkyl sulphides into bromosulphonium (R2SBr+) intermediates (ρ* -1.22 and 1.11, ρI -13.3 and -14.4, respectively.).Electrophilic additions of Br+ to sulphur atom are significantly hindered by the steric effect of S-alkyl groups (δ 0.713 and 0.765, ρs 0.766 and 0.792, respectively).Products are rapidly formed from bromosulphonium ions by nucleophilic displacement with OH- and p-MeC6H4SO2NH- nucleophiles.Product distribution depends on pH and the concentration of p-MeC6H4SO2NH2 but is not influenced markedly by S-alkyl groups in sulphides.Results are compared with those obtained earlier for chloramine T.
