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(2-Phenyl-but-3-enyloxy)-acetaldehyde is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

257950-05-3

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257950-05-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 257950-05-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,9,5 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 257950-05:
(8*2)+(7*5)+(6*7)+(5*9)+(4*5)+(3*0)+(2*0)+(1*5)=163
163 % 10 = 3
So 257950-05-3 is a valid CAS Registry Number.

257950-05-3Relevant academic research and scientific papers

Stereoselectivity of intramolecular cyclisations of nitrones derived from 3-oxahept-6-enals

Gravestock, Michael B.,Knight, David W.,Lovell, Jennifer S.,Thornton, Steven R.

, p. 3143 - 3155 (2007/10/03)

Intramolecular [l,3]-dipolar cycloadditions of nitrones 33, derived from 3-oxahept-6-enals 7, substituted at either the 4- or 5-position and prepared using a variety of approaches, give good to excellent yields of the cycloadducts 34-37, with good levels

Stereoselectivity of Intramolecular Cyclisations of Nitrones Derived from 3-Oxahept-6-enals

Gravestock, Michael B.,Knight, David W.,Lovell, Jennifer S.,Thornton, Steven R.

, p. 1661 - 1664 (2007/10/02)

Intramolecular cycloadditions of the nitrones 9 and 14 show moderate to good stereoselections in favour of the cis-fused diastereoisomers 10 or 16, respectively.

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