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1-(Diphenyl-phosphinoylmethyl)-cyclopent-2-enol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

134891-94-4

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134891-94-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134891-94-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,8,9 and 1 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 134891-94:
(8*1)+(7*3)+(6*4)+(5*8)+(4*9)+(3*1)+(2*9)+(1*4)=154
154 % 10 = 4
So 134891-94-4 is a valid CAS Registry Number.

134891-94-4Relevant academic research and scientific papers

Oxidative rearrangement of phosphorus containing tertiary allylic alcohols: Synthesis of (3-oxo-1-cycloalkenyl)phosphonates, -methylphosphonates, -methyldiphenylphosphine oxides and their epoxy derivatives

Ohler,Zbiral

, p. 357 - 361 (2007/10/02)

Regioselective 1,2-addition of dimethylphosphite, diethyl (lithiomethyl)phosphonate, or (lithiomethyl)diphenylphosphine oxide to 2-cyclopenten-1-one (1a) or 2-cyclohexen-1-one (1b) affords the corresponding phosphorus containing, tertiary allylic alcohols

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