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4-cyclohexylidene-3-diphenylphosphinoylbut-3-en-2-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1637401-83-2

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1637401-83-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1637401-83-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,7,4,0 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1637401-83:
(9*1)+(8*6)+(7*3)+(6*7)+(5*4)+(4*0)+(3*1)+(2*8)+(1*3)=162
162 % 10 = 2
So 1637401-83-2 is a valid CAS Registry Number.

1637401-83-2Downstream Products

1637401-83-2Relevant academic research and scientific papers

Bifunctionalized allenes. Part XIII. A convenient and efficient method for regioselective synthesis of phosphorylated α-hydroxyallenes with protected and unprotected hydroxy group

Ismailov, Ismail E.,Ivanov, Ivaylo K.,Christov, Valerij C.

, p. 6309 - 6329 (2014/06/10)

The paper describes a convenient and efficient method for regioselective synthesis of phosphorylated α-hydroxyallenes using an atom economical [2,3]-sigmatropic rearrangement of intermediate propargyl phosphites or phosphinites. These can be readily prepared via reaction of protected alkynols with dimethyl chlorophosphite or chlorodiphenyl phosphine respectively in the presence of a base.

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