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83698-33-3

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83698-33-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83698-33-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,6,9 and 8 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 83698-33:
(7*8)+(6*3)+(5*6)+(4*9)+(3*8)+(2*3)+(1*3)=173
173 % 10 = 3
So 83698-33-3 is a valid CAS Registry Number.

83698-33-3Relevant articles and documents

Transformation of Alkyl Halides to Aldehydes Having Two Additional Carbon Atoms

Shankaran, K.,Talekar, D. G.,Rao, A. S.

, p. 408 - 410 (2007/10/02)

Methyl 3-oxo-4-phenylbutanoate (6) reacts with alkyl halides (1a-g) in the presence of NaH/benzene to furnish alkylated β-keto esters (2a-g).Hydrolysis of 2a-g gives benzyl ketones (3a-g), which on reduction with sodium borohydride give the homobenzylic alcohols (4a-g).The alcohols (4a-g) are readily fragmented to aldehydes (5a-g) on heating with lead tetraacetate/iodine.

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