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71648-40-3

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71648-40-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71648-40-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,6,4 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 71648-40:
(7*7)+(6*1)+(5*6)+(4*4)+(3*8)+(2*4)+(1*0)=133
133 % 10 = 3
So 71648-40-3 is a valid CAS Registry Number.

71648-40-3Downstream Products

71648-40-3Relevant articles and documents

HYDROBORATION OF 1-(3-BUTENYL)PIPERIDINE AND 1-(4-PENTENYL)PIPERIDINE

Kafka, Stanislav,Ferles, Miloslav

, p. 78 - 85 (2007/10/02)

Hydroboration of 1-(3-butenyl)- (Ia) and 1-(4-pentenyl)piperidine (Ib) with triethylamine-borane followed by hydrolysis and oxidation afforded the appropriate alcohols IIIc and IIIf resp.The spirocyclic amine-borane IIa,b isolated from the hydroboration product were transformed by hydrochloric acid into the hydrochlorides of piperidinealkylboronic acids IVa,b which were oxidized in an alkaline medium with hydrogen peroxide to the primary alcohols IIIc,f.Diethyl ester V was prepared by ethanolysis of IIa.

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