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(-)-(R)-methyl 1-bromo-2,2-diphenylcyclopropanecarboxylate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

25140-25-4

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25140-25-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25140-25-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,1,4 and 0 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 25140-25:
(7*2)+(6*5)+(5*1)+(4*4)+(3*0)+(2*2)+(1*5)=74
74 % 10 = 4
So 25140-25-4 is a valid CAS Registry Number.

25140-25-4Downstream Products

25140-25-4Relevant academic research and scientific papers

Preparative resolution of bromocyclopropylcarboxylic acids

Edwards, Andrew,Ryabchuk, Pavel,Barkov, Alexey,Rubina, Marina,Rubin, Michael

, p. 1537 - 1549 (2015/02/02)

A general and efficient method for the preparative resolution of α- and β-bromocyclopropylcarboxylic acids has been developed. This protocol involves a sequence of two crystallizations with pseudo-enantiomeric amines, cinchonine, and cinchonidine, which yield both enantiomers of the acid in highly enriched form. Both alkaloids can be easily recovered and reused multiple times without any loss of efficacy.

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