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4-Phenylseleno-buten-(2)-ol-(1) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21113-93-9

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21113-93-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21113-93-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,1 and 3 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21113-93:
(7*2)+(6*1)+(5*1)+(4*1)+(3*3)+(2*9)+(1*3)=59
59 % 10 = 9
So 21113-93-9 is a valid CAS Registry Number.

21113-93-9Upstream product

21113-93-9Downstream Products

21113-93-9Relevant academic research and scientific papers

Cyclopentanoids by uncatalyzed intramolecular carbonyl ene (ICE) reaction of α-keto esters

Tymann, David,Klueppel, Andre,Hiller, Wolf,Hiersemann, Martin

, p. 4062 - 4065 (2014)

The uncatalyzed intramolecular carbonyl ene (ICE) reaction of substituted ε,ζ-unsaturated α-keto esters to terpenoid-related building blocks has been studied. We found a beneficial effect of a silyl substituent at the ene segment on the kinetics of the ICE reaction. A generalizable and scalable synthesis of ε,ζ-unsaturated α-keto esters from allylic alcohols was developed.

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