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40677-59-6

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40677-59-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40677-59-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,6,7 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 40677-59:
(7*4)+(6*0)+(5*6)+(4*7)+(3*7)+(2*5)+(1*9)=126
126 % 10 = 6
So 40677-59-6 is a valid CAS Registry Number.

40677-59-6Downstream Products

40677-59-6Relevant articles and documents

Photochemistry of Phosphate Esters: An Efficient Method for the Generation of Electrophiles

Givens, Richard S.,Matuszewski, Bogdan

, p. 6860 - 6861 (1984)

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Generation of Bicycloheptatrienes

Billups, W. E.,Reed, Larry E.,Casserly, Edward W.,Lin, L. P.

, p. 1326 - 1333 (2007/10/02)

Derivatives of bicycloheptatriene have been generated in solution by the base-induced dehydrochlorination of gem-dichlorocyclopropanes.Reaction of 7,7-dichlorodibenzobicycloheptane with potassium tert-butoxide in tetrahydrofuran at 0 deg C gives mainly products derived from solvent incorporation by carbene insertion.Evidence that the carbene results from rearrangement of the bicycloheptatriene derives from the successful interception of the bicycloheptatriene with nucleophile (MeS-). endo-7-Chlorodibenzobicycloheptane failed to reactwith potassium tert-butoxide in tetrahydrofuran.Generation of benzobicycloheptatrienes was also accomplished via the base-induced dehydrochlorination of gem-dichlorocyclopropanes. 1-Methylbenzobicycloheptatriene gives products derived from multiple carbene-carbene rearrangements.In contrast, nonannelated methylbicycloheptatrienes generated by the dehydrochlorination route give only carbene-derived products resulting from the initially produced bicycloheptatriene.

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