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108583-40-0

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108583-40-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 108583-40-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,5,8 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 108583-40:
(8*1)+(7*0)+(6*8)+(5*5)+(4*8)+(3*3)+(2*4)+(1*0)=130
130 % 10 = 0
So 108583-40-0 is a valid CAS Registry Number.

108583-40-0Downstream Products

108583-40-0Relevant articles and documents

SYNTHESYS OF HETEROCYCLIC PROPELLANES. PREPARATION AND TRANSANNULAR REACTIONS OF 5-ETHOXYCARBONYLMETHYLENE-CYCLOOCTANONE AND CORRESPONDING OXIMES AND HYDRAZONES

Malomidou-Xenikaki, E.,Nicolaides, D. N.

, p. 5081 - 5088 (2007/10/02)

5-Ethoxycarbonylmethylene-cyclooctanone (3) is prepared by Wittig monoolefination of dione 1 with phosphorus ylide 2.Thermal transannular cyclization of oxime 6 and phenylhydrazone 12 of the ketone 3 affords 3-oxa-2-aza- and 2,3-diazapropellanes 7 and 14 respectively.Irradiation of ketone 3, its oxime 9, and its dimethylhydrazone 16 furnish 9-oxa-, and 9-azapropellanes 11, 10, and 17, respectively.In addition to the propellane 14, phenylazobicyclo compound 13 is also obtained from phenylhydrozyne 12.The acetyl derivatives 8 and 15 of propellanes 7 and 14 are also prepared and studied.

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