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70042-49-8

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70042-49-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70042-49-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,0,4 and 2 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 70042-49:
(7*7)+(6*0)+(5*0)+(4*4)+(3*2)+(2*4)+(1*9)=88
88 % 10 = 8
So 70042-49-8 is a valid CAS Registry Number.

70042-49-8Relevant articles and documents

A Novel Route to Geminal Dibromocyclobutanes: Syntheses of 2-Substituted Cyclobutanone Acetals and Their Reaction with Boron Tribromide

Nordvik, Tore,Brinker, Udo H.

, p. 9394 - 9399 (2007/10/03)

Nine 2-substituted cyclobutanone acetals, in addition to the parent cyclobutanone acetal, were synthesized from their corresponding cyclobutanones and subsequently treated with boron tribromide. The substituents were either alkyl chains or a phenyl and a

FLUORIDE-CATALYZED CONDENSATION OF 1-PHENYLSULFINYL-1-(TRIMETHYLSILYL)CYCLOPROPANE WITH CARBONYL COMPOUNDS

Pohmakotr, Manat,Sithikanchanakul, Srisamorn

, p. 477 - 484 (2007/10/02)

1-Phenylsulfinyl-1-(trimethylsilyl)cyclopropane reacts with aldehydes in the presence of Bu4NF to give 1-phenylsulfinyl-1-(α-hydroxyalkyl)cyclopropanes.

A New and Convenient Synthetic Method for Cyclopropyl Phenyl Sulfides

Tanaka, Kazuhiko,Uneme, Hideki,Matsui, Shuichi,Kaji, Aritsune

, p. 2965 - 2972 (2007/10/02)

The reactions of a variety of 1,3-bis(phenylthio)propanes with butyllithium have been shown to produce cyclopropyl phenyl sulfides in good to high yields.A new and convenient in situ preparation of 1-lithiocyclopropyl phenyl sulfide can be readily carried out by treating 1,3-bis(phenylthio)propane with 2 equiv. of butyllithium at 0 degC in THF.The reaction with electrophiles proceeds in good yield.O-Aryl and O-alkyl S-cyclopropyl dithiocarbonates also can be prepared in good yields. 1,2-Bis(phenylthio)ethane was converted to phenyl vinyl sulfide on treatment with butyllithium, while 1,4-bis(phenylthio)butane was recovered unchanged by a similar treatment.

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