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127280-96-0

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127280-96-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127280-96-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,2,8 and 0 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 127280-96:
(8*1)+(7*2)+(6*7)+(5*2)+(4*8)+(3*0)+(2*9)+(1*6)=130
130 % 10 = 0
So 127280-96-0 is a valid CAS Registry Number.

127280-96-0Relevant articles and documents

Preparation of Donor-Acceptor-Substituted Vinylcyclobutanes

Gruseck, Ursula,Heuschmann, Manfred

, p. 1905 - 1909 (2007/10/02)

2-Methylen-1,3-dioxolane (1) and the methyl acrylates or crotonates 2 form cycloadducts 3 which are reduced to give alcohols 6.Oxidation of these alcohols at low temperatures leads to unstable aldehydes 7, which either rearrange to dihydropyrans 5 or react with Wittig(-Horner) reagents to afford donor-acceptor-substituted vinylcyclobutanes 8.The cis-vinylcyclobutane 8g is prepared by cycloaddition of dioxolane 1 and methyl (2E,4Z)-hexadienoate (9).The configurations and preferred conformations of the vinylcyclobutanes 8 have unequivocally been assigned on the basis of 13C- and 1H-NMR spectra.

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