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117688-36-5

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117688-36-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117688-36-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,6,8 and 8 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 117688-36:
(8*1)+(7*1)+(6*7)+(5*6)+(4*8)+(3*8)+(2*3)+(1*6)=155
155 % 10 = 5
So 117688-36-5 is a valid CAS Registry Number.

117688-36-5Relevant articles and documents

Deamination Reactions, 51. - Decomposition of Bicyclohexane-exo-6-diazonium Ions

Kirmse, Wolfgang,Hellwig, Georg

, p. 389 - 392 (2007/10/02)

The nitrous acid deamination of the amine 13, the copper(II)-induced cleavage of the nitrosourea 19, and the thermolysis of the nitrosoamide 20 were used to generate the diazonium ion 7.In contrast to previous work, performed in the presence of base, the neutral to weakly acidic conditions of the present study afforded substantial fractions (30-40percent) of bicyclohex-exo-6-yl products (15).Small quantities of bicyclohex-endo-6-yl (14), bicyclohex-2-yl (25, 26) and 3-cyclohexen-1-yl (27) derivatives were also detected, the latter arising by a 1,3-hydride shift.These results, unprecedented with higher homologs of 7, suggest a largely "classical" bicyclohex-6-yl cation (21) as the initially formed intermediate.Capture of 21 is thought to compete with disrotatory transformation to the cyclohexenyl cation 12. - Keywords: Bicyclohex-6-yl derivatives/ Diazonium ions/ Electrocyclic reactions/ Nucleophilic displacement

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