Results 11 to 20 of about 17,306 (293)

Transfer of electrophilic NH using convenient sources of ammonia: direct synthesis of N–H sulfoximines from sulfoxides [PDF]

, 2016
The transfer of nitrogen atoms is extremely valuable in the preparation of medicinal compounds. Here, a new system for NH transfer is developed to prepare sulfoximines, which are emerging as valuable motifs for drug discovery.
Bentley, Bizet, Bizet, Buglioni, Carroccia, Cheng, Collins, Collins, Collins, Dauban, Degennaro, Dohi, Dong, Fiori, Goldberg, Gutmann, Iacobucci, Ivanov, Jat, Johnson, Langner, Lücking, Lücking, Mancheño, Mendiola, Miao, Miyasaka, Ochiai, Okamura, Rit, Roizen, Romero, Shen, Silva, Souto, Starkov, Tamura, Teng, Wang, Weber, Williamson, Zenzola, Zhu, Zou   +43 more
core   +1 more source

Enantiomeric oxidation of organic sulfides by the filamentous fungi Botrytis cinerea, Eutypa lata and Trichoderma viride [PDF]

, 2007
The biotransformations of a series of substituted sulfides were carried out with the filamentous fungi Botrytis cinerea, Eutypa lata and Trichoderma viride.
Annunziata, Auret, Bolm, Cashman, Collins, Cristina Pinedo-Rivilla, Fernández, Gamma, Holland, Holland, Holland, Holland, Holland, Holland, Holland, Holland, Holland, Isidro G. Collado, Jones, Josefina Aleu, Khatib, Komatsu, Kubec, Kyung, Madesclaire, Mata, Page, Ricci, Sang   +28 more
core   +2 more sources

Electrochemical oxidations of thioethers: Modulation of oxidation potential using a hydrogen bonding network

Electrochemistry Communications, 2019
A highly efficient chemo-selective electrochemical oxidation of thioethers to sulfoxides and sulfones was developed. The hydrogen bonding network generated from hexafluoro-2-propanol (HFIP) and acetic acid (AcOH) plays an important role in the modulation
Shiwen Liu, Bocheng Chen, Yi Yang, Yuhao Yang, Qianjin Chen, Xiaojun Zeng, Bo Xu   +6 more
doaj   +1 more source

Can acyclic conformational control be achieved via a sulfur-fluorine gauche effect? [PDF]

, 2015
The gauche conformation of the 1,2-difluoroethane motif is known to involve stabilising hyperconjugative interactions between donor (bonding, σC-H) and acceptor (antibonding, σ*C-F) orbitals.
Daniliuc, C, Gilmour, R, Holland, MC, Houk, KN, Thiehoff, C   +4 more
core   +1 more source

Membrane-free selective oxidation of thioethers with water over a nickel phosphide nanocube electrode

Cell Reports Physical Science, 2021
Summary: Developing a membrane-free oxidation reaction, especially using water as the oxygen source, to generate high-value chemicals with high selectivity for replacing low-value O2 over a cost-effective catalyst is significant.
Shuyan Han, Changhong Wang, Yanmei Shi, Cuibo Liu, Yifu Yu, Siyu Lu, Bin Zhang   +6 more
doaj   +1 more source

Unexpected nucleophilic participation and rearrangement of DBU in reactions with saccharin derivatives [PDF]

, 2003
DBU attacks saccharin derivatives with subsequent rearrangement to give rise to 3-[3'-(1"-azepin-2"-onyl)propylamino]-1,2-benzisothiazole-1,1-dioxide 2 after work ...
Barkley, James V., Bethell, Donald, Bulman Page, Philip C., Vahedi, Hooshang   +3 more
core   +1 more source

Highly Efficient Selective Oxygenation of Sulfides to Sulfoxides by Oxalic Acid Dihydrate in the Presence of H2O2

E-Journal of Chemistry, 2012
A highly efficient method for the oxidation of sulfides to sulfoxides using oxalic acid dihydrate in the presence of hydrogen peroxide has been developed.
Masoud Mokhtary, Mohammad Qandalee, Masoumeh Rastegar Niaki   +2 more
doaj   +1 more source

EFFECT OF PROPELLER MIXER TURNS NUMBER ON THE SULFIDES OXIDATION RATE IN THE OIL PHASE IN A MIXING REACTOR

Известия высших учебных заведений: Проблемы энергетики, 2019
The effect of the rotation number of the propeller mixer on the concentration of sulfoxide sulfur in the oil fraction of Arlan oil during the oxidation of this fraction sulfides with hydrogen peroxide along with an acid catalyst, a mixture of formic and ...
R. E. Lipantyev, V. P. Tutubalina
doaj   +1 more source

A kinetic and theoretical study of the borate catalysed reactions of hydrogen peroxide: the role of dioxaborirane as the catalytic intermediate for a wide range of substrates [PDF]

, 2012
Our recent work has provided new insights into the equilibria and species that exist in aqueous solution at different pHs for the boric acid – hydrogen peroxide system, and the role of these species in oxidation reactions. Most recently, (M. C.
Abel, Adam, Amels, Bennett, Bunton, Chernyshov, Curci, Curci, Curci, D. Martin Davies, Davies, Davies, Davies, Duffin, Durrant, Fortnum, Hansch, Hanson, Hanson, Hoffmann, Hoffmann, Hussain, Ingri, Kamyshny, Lin, Lin, Marcus C. Durrant, Marenich, Maya, Mckillop, McKillop, Michael E. Deary, Mohammad, Muzart, Ogata, Pizer, Salentine, Sawaki, Sawwan, Schubert, Spessard, Wilson, Wilson, Wilson   +43 more
core   +1 more source

Deep eutectic solvent mediated controlled and selective oxidation of organic sulfides and hydroxylation of arylboronic acids

Current Research in Green and Sustainable Chemistry, 2021
A mild and efficient protocol has been developed for the controlled oxidation of wide variety of organic sulfides to corresponding sulfoxides using deep eutectic solvent (DES) as catalyst and hydrogen peroxide as oxidant under ambient condition.
Apurba Dutta, Anirban Garg, Jyotsna Borah, Ramyata Priyam Borah, Diganta Sarma   +4 more
doaj   +1 more source