70920-59-1

Upstream product

• 217497-19-3 2,4,6-trimethyl-benzenesulfonic acid-(methyl-nitroso-amide) 
• 108-90-7 chlorobenzene 
• 36016-40-7 mesitylenesulfonylhydroxylamine 
• 548929-67-5 3-acetyl-2-methylsulfanyl-1H-quinolin-4-one 
• 548929-92-6 3-acetyl-6-chloro-2-methylsulfanyl-1H-quinolin-4-one 
• 548929-96-0 3-acetyl-6-chloro-2-methylsulfanyl-8-trifluoromethyl-1H-quinolin-4-one 
• 773-64-8 2-mesitylenesulphonyl chloride 
• 67-56-1 methanol 

Relevant academic research and scientific papers

Synthetic method of organic DSTMS crystal high-purity growth raw material

The invention discloses a synthetic method of an organic DSTMS crystal high-purity growth raw material. The method comprises the following steps of: 1, reacting mesitylene sulfonyl chloride and methanol serving as reactants and organic alkali piperidine s

Isotope Effects in the Solvolysis of Sterically Hindered Arenesulfonyl Chlorides

Solvent isotope effects in the ethanolysis of sterically hindered arenesulfonyl chlorides ruled out a proton transfer in the rate-determining step and agreed with a SN2 mechanism involving at least a second solvent molecule in the transition state (TS). The lack of a secondary kinetic isotope effect in the o-alkyl groups allows us to disregard the possible contribution of σ-π hyperconjugation. The measured activation parameters are consistent with a SN2 mechanism involving the participation of solvent molecules in the TS, possibly forming a cyclic TS through a chain of solvent molecules.

Quinolinium single crystals for use in nonlinear optics

The present invention relates to quinolinium-derived single crystals for use in nonlinear optics, which exhibit high molecular orientation and macroscopic optical nonlinearity. When the quinolinium-derived crystals according to the present invention are a

Isothiazole ring formation with substituted 2-alkylthio-3-acyl-4-quinolinone using O-(mesitylenesulfonyl)hydroxylamine (MSH)

Isothiazole ring skeleton was formed by the treatment of substituted 2-alkylthio-3-acyl-4-quinolinone with O-(mesitylenesulfonyl)hydroxylamine(MSH). A mixture of alkyl transferred 3-methyl-9-alkyl-4,9-dihydroisothiazolo[5,4-b]quinolin-4-one as a major product and dealkylated 3-methyl-4,9-dihydroisothiazolo[5,4-b]quinolin-4-one as a minor product was obtained from unsubstituted 2-alkylthio-3-acyl-4-quinolinone in the presence of K2CO3. When 2 equivalents of MSH were used in the absence of K2CO3 only dealkylated product was obtained in quantitative yield.