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27610-20-4

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27610-20-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 27610-20-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,6,1 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 27610-20:
(7*2)+(6*7)+(5*6)+(4*1)+(3*0)+(2*2)+(1*0)=94
94 % 10 = 4
So 27610-20-4 is a valid CAS Registry Number.

27610-20-4Relevant academic research and scientific papers

NANOSTRUCTURES AND METHODS FOR CHEMICALLY SYNTHESIZING NANOSTRUCTURES

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Page/Page column 16-18, (2011/01/12)

The present invention generally relates to nanostructure compositions, as well as methods for the controlled synthesis of nanostructures, such as carbon nanotubes. In some embodiments, methods involving iterative growth of a nanostructure template to homo

Model Reaction of Self-Condensation of Sulfenic Acids. Kinetic Investigation for the Reaction of Methyl Benzenesulfenate with trans-Decalin-9-sulfenic Acid and 2-Methyl-2-propanesulfenic Acid

Yoshimura, Toshiaki,Hamada, Kazuhiro,Yamazaki, Satoru,Shimasaki, Choichiro,Ono, Shin,Tsukurimishi, Eiichi

, p. 211 - 218 (2007/10/02)

Reaction of 2-methyl-2-propanesulfenic acid (1) with methyl arenesulfenates (2) gave S-aryl 2-methyl-2-propanethiosulfinates quantitatively, and kinetic investigation was carried out.Second-order rate dependence (first-order in methyl benzenesulfenate (2a

Dual Reactivity of Methoxymethyl Benzenesulfonate in Nucleophilic Substitution

Okuyama, Tadashi,Fueno, Takayuki

, p. 2672 - 2683 (2007/10/02)

Hydrolysis of methoxymethyl benzenesulfenate is catalyzed by both acid and base.Acid-catalyzed hydrolysis is further accelerated by various nucleophiles like halide ions, thiocyanate, dialkyl sulfide, and the substrate itself.The catalytic constants coincide with those for ethyl benzenesulfenate within 2-fold in magnitude.The nucleophilic reactivity strongly suggests the reaction at the sulfenyl sulfur, but examination of the products from the 18O-labeled substrate showed that the bond cleavage occurs mostly between the oxygen and the proformyl carbon except for the acid-catalyzed water reaction which undergoes the S-O cleavage.A mechanism for a nucleophilic reaction at the sulfur to form a sulfurane intermediate which breaks down with the C-O cleavage is presented.The hydrolysis rate is also strongly dependent on the second order of buffer concentrations in carboxylate and tertiary amine buffer solutions.The third-order term involves both the general acid and the conjugate base of the buffer, and the latter reacts at the sulfur as a nucleophile in the rate-determining step but leads to the C-O cleavage in the same way as the other catalytic nucleophiles.

Acid-Catalyzed Cleavage of Methoxymethyl Phenyl Sulfoxide. Solvent Effects and Mode of Bond Cleavage

Okuyama, Tadashi,Fueno, Takayuki

, p. 3111 - 3116 (2007/10/02)

Rate constants for the acid-catalyzed hydrolysis of methoxymethyl phenyl sulfoxide increase with increasing composition of dioxane in dioxane aqueous solution in contrast to the isomeric sulfenate which is strongly decelerated by added dioxane fraction (u

Nucleophilic Catalysis in the Hydrolysis of Methoxymethyl Benzenesulfenate, a Formaldehyde Acetal

Okuyama, Tadashi,Fueno, Takayuki

, p. 2193 - 2196 (2007/10/02)

Acid-catalyzed hydrolysis of methoxymethyl benzenesulfenate is accelerated by nucleophiles (Cl-, Br-, I-, R2S, AcO-, tertiary amines, and the substrate itself) through the attack at the proformyl carbon while water attacks at the sulfenyl sulfur.

FLUOROMETHYL PHENYL SULFOXIDE: HIGHLY CONVENIENT SYNTHESES OF VINYL FLUORIDES AND FLUOROMETHYLKETONES

Reutrakul, Vichai,Rukachaisirikul, Vatcharin

, p. 725 - 728 (2007/10/02)

Alkylation of lithio fluoromethyl phenyl sulfoxide 2 gave the alkylated products in high yields.Pyrolysis of the products led to vinyl fluorides in excellent yields.The reaction of 2 with carbonyl compounds led to the corresponding β-hydroxy-α-fluoromethyl phenyl sulfoxides.Pyrolysis of some of the sulfoxides gave fluoromethylketones in moderate yields.

RETROALDOL REACTIONS OF β-HYDROXY-α-PHENYLSULFENYL CYCLOHEXANONE DERIVATIVES

Caine, Drury,Crews, Everett,Salvino, Joseph M.

, p. 2083 - 2086 (2007/10/02)

Upon treatment with strong bases β-hydroxy-α-phenylsulfenyl cyclohexanone derivatives undergo retroaldol reactions to give open-chain keto (or aldehydo) enolates which can be trapped with electrophilic or nucleophilic reagents.

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