Results 321 to 330 of about 556,826 (407)

Potential Explosion Hazards Associated with the Autocatalytic Thermal Decomposition of Dimethyl Sulfoxide and Its Mixtures

, 2020
Dimethyl sulfoxide (DMSO) is widely used as a solvent for chemical reactions, as a cosolvent for crop protection formulations, and in medicines for topical administration of drugs.
Qiang Yang, Min Sheng, Xiaoyong Li, Craig A. Tucker, Suhelen Vásquez Céspedes, Nicola J. Webb, G. Whiteker, Jing Yu   +7 more
semanticscholar   +1 more source

I2/PhI(OAc)2 Copromoted Amination Reaction: Synthesis of α-Dicarbonylsulfoximine Derivatives by Incorporating an Intact Dimethyl Sulfoxide.

Journal of Organic Chemistry, 2019
An I2/PhI(OAc)2 copromoted strategy using dimethyl sulfoxide as an "S/C2/O" source for preparing α-dicarbonylsulfoximine derivatives is reported. This process involves oxidative coupling to construct a C-N bond and electrophilic amination of dimethyl ...
Peng Zhao, Xia Wu, Xiao Geng, Can Wang, You Zhou, Yan‐Dong Wu, A. Wu   +6 more
semanticscholar   +1 more source

Quantifying Hydrogen-Bond Populations in Dimethyl Sulfoxide/Water Mixtures.

Angewandte Chemie, 2017
Dimethyl sulfoxide (DMSO) disrupts the hydrogen-bond networks in water. The widespread use of DMSO as a cosolvent, along with its unusual attributes, have inspired numerous studies.
Kwang-Im Oh, Kavya Rajesh, J. Stanton, Carlos R. Baiz   +3 more
semanticscholar   +1 more source

Cryoprotection by dimethyl sulfoxide and dimethyl sulfone

Cryobiology, 1987
Preservation of cells and tissues at low temperatures requires the presence of effective cryoprotectants with low toxicity to which cells are relatively permeable. Two similar compounds, dimethyl sulfoxide (DMSO) and dimethyl sulfone (DMSO2), exhibit both features for cryoprotectants, yet DMSO is a very effective cryoprotectant while DMSO2 is ...
Michele L. Walterson, Locksley E. McGann
openaire   +3 more sources

Thermolysis of dimethyl sulfoxide

International Journal of Chemical Kinetics, 1973
AbstractThe thermal decomposition of dimethyl sulfoxide at small extent of reaction has been studied at temperatures of 297‐350°C and pressures of 10–400 Torr. The major products CH4, C2H4, and SO2 were shown to follow first‐order kinetics. The activation energies for production of each was about 48 kcal·mole−1. A chain mechanism has been postulated in
G. Debecker, F. C. Thyrion
openaire   +3 more sources

Dimethyl Sulfoxide Involved One-Pot Synthesis of Quinoxaline Derivatives.

Journal of Organic Chemistry, 2017
An efficient, green, and novel method for the synthesis of N-heterocycle-fused quinoxalines is reported herein. Dimethyl sulfoxide was used as both a reactant and a solvent in this reaction.
Caixia Xie, Zeyuan Zhang, Danyang Li, J. Gong, Xushuang Han, Xuan Liu, Chen Ma   +6 more
semanticscholar   +1 more source

DIMETHYL SULFOXIDE THERAPY IN BRONCHIOLITIS

Annals of the New York Academy of Sciences, 1975
The action of a medicinal spray that contains anti-inflammatory and bacterio-static drugs integrated with the penetrating and potentiating agent DMSO has been evaluated clinically in 60 infants with acute respiratory obstruction. A dose of 2 ml of this spray is applied in the posterior pharynx and the tonsil region; 1 to 4 applications are made ...
Rodolfo Burdach, Santiago Rubio, Aristides Zúñiga   +2 more
openaire   +3 more sources

Iodine-Catalyzed Cross Dehydrogenative Coupling Reaction: Sulfenylation of Enaminones Using Dimethyl Sulfoxide as an Oxidant.

Journal of Organic Chemistry, 2017
Synthesis of polyfunctionalized aminothioalkenes has been demonstrated using iodine as a catalyst (30 mol %) and dimethyl sulfoxide as an oxidant under metal-free reaction conditions.
Yogesh Siddaraju, K. R. Prabhu
semanticscholar   +1 more source

Transition Metal-Free α-Csp3-H Methylenation of Ketones to Form C═C Bond Using Dimethyl Sulfoxide as Carbon Source.

Journal of Organic Chemistry, 2017
A direct α-Csp3-H methylenation of arylketones to form C═C bond using dimethyl sulfoxide as one-carbon source is achieved under transition metal-free reaction condition.
Yufeng Liu, Peng-Yi Ji, Jing-Wen Xu, Yuqun Hu, Qiang Liu, W. Luo, C. Guo   +6 more
semanticscholar   +1 more source

Iodine-Catalyzed Cross Dehydrogenative Coupling Reaction: A Regioselective Sulfenylation of Imidazoheterocycles Using Dimethyl Sulfoxide as an Oxidant.

Journal of Organic Chemistry, 2016
A regioselective formation of C-S bonds has been achieved using a cross dehydrogenative coupling (CDC) protocol using iodine as a catalyst and dimethyl sulfoxide as an oxidant under green chemistry conditions. This strategy employs the reaction of easily
Yogesh Siddaraju, K. R. Prabhu
semanticscholar   +1 more source