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diphenylmethyl 6β-bromo-6α-(hydroxymethyl)penicillanate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81324-31-4

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81324-31-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81324-31-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,3,2 and 4 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 81324-31:
(7*8)+(6*1)+(5*3)+(4*2)+(3*4)+(2*3)+(1*1)=104
104 % 10 = 4
So 81324-31-4 is a valid CAS Registry Number.

81324-31-4Relevant academic research and scientific papers

Stereoselective reduction of α-bromopenicillanates by tributylphosphine

Ishiwata, Akihiro,Kotra, Lakshmi P.,Miyashita, Kazuyuki,Nagase, Tsuyoshi,Mobashery, Shahriar

, p. 2889 - 2892 (2007/10/03)

Diastereoselective reduction of 6-bromo-6-substituted penicillanate esters has been achieved by treatment with tributylphosphine to give 6-substituted penicillanate esters. This reaction would appear to proceed through a phosphonium β-lactam enolate speci

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