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34492-10-9

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34492-10-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34492-10-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,4,9 and 2 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 34492-10:
(7*3)+(6*4)+(5*4)+(4*9)+(3*2)+(2*1)+(1*0)=109
109 % 10 = 9
So 34492-10-9 is a valid CAS Registry Number.

34492-10-9Downstream Products

34492-10-9Relevant articles and documents

Stereochemical Evidence for Aryl Participation in the Ring Opening of Oxiranes. Ring-Opening Reactions of 1-Benzyl-1,2-epoxycyclohexane under Acidic Conditions

Costantino, Paolo,Crotti, Paolo,Ferretti, Maria,Macchia, Franco

, p. 2917 - 2923 (1982)

The reactions of 1-benzyl-1,2-epoxycyclohexane (1) have been investigated and compared with the ones of the corresponding methyl-substituted oxirane (3) in order to evaluate the possibility that an aryl group not directly linked to the oxirane ring can participate in the ring-opening processes.The acid-catalyzed ring-opening reactions of 1 are not completly anti stereoselective and give mixtures of syn and anti addition products accompanied by rearrangement compounds.The stereoselectivity and the amounts of rearrangement products vary noticeably with the reactionconditions.The results obtained and in particular the presence of substantial amounts of syn products observed in the ring-opening reactions of 1, markedly higher than those from epoxide 3, strongly suggest the incursion of aryl participation and have been rationalized through a mechanism implying the intermediacy of a phenonium-type ion.

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