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1,3,2-Dioxaphosphorinane, 2-[chloro(4-methoxyphenyl)methyl]-5,5-dimethyl-, 2-oxide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

188840-56-4

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188840-56-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188840-56-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,8,4 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 188840-56:
(8*1)+(7*8)+(6*8)+(5*8)+(4*4)+(3*0)+(2*5)+(1*6)=184
184 % 10 = 4
So 188840-56-4 is a valid CAS Registry Number.

188840-56-4Relevant academic research and scientific papers

Direct synthesis of α-substituted phosphonates

Praveen Kumar, K,Muthiah, C,Kumaraswamy, Sudha,Kumara Swamy

, p. 3219 - 3221 (2001)

The α-substituted phosphonates (OCH2CMe2CH2O)P(O)CH(X)(Ar) [X=Cl, OMe, NMe2 and OSiMe3], useful precursors for Horner-Wadsworth-Emmons reactions, are readily prepared by treating (OCH2CMe2CH2O)PX with an aromatic aldehyde. In the reaction of (OCH2CMe2CH2O)PCl with furfuraldehyde and cinnamaldehyde, the 5-chlorofurfurylphosphonate (OCH2CMe2CH2O)P(O)CH2 (5-Cl-C4H2O) and the γ-chlorophosphonate (OCH2CMe2CH2O)P(O)CH=CH-CH(Cl)Ph, respectively, are formed in good yields.

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