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7744-25-4

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7744-25-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7744-25-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,4 and 4 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 7744-25:
(6*7)+(5*7)+(4*4)+(3*4)+(2*2)+(1*5)=114
114 % 10 = 4
So 7744-25-4 is a valid CAS Registry Number.

7744-25-4Relevant articles and documents

Reactivity and stereoselectivity of the Diels-Alder reaction using cyclic dienophiles and siloxyaminobutadienes

Ohfusa, Toshiyuki,Nishida, Atsushi

experimental part, p. 1893 - 1906 (2011/04/17)

Several bicyclic compounds were synthesized by the Diels-Alder reaction using aminodiene and a cyclic dienophile. The stereochemistries of the obtained adducts were determined by X-ray crystallography or NMR analysis. The stereoselectivity of this Diels-A

EFFICIENT MICHAEL ADDITION REACTIONS OF THE N-ARYLSULFONYL-3-PHENYLTHIOPIPERIDONES. SYNTHESIS OF 3-SUBSTITUTED DIHYDROPYRIDINONES

Nakagawa, Masako,Torisawa, Yasuhiro,Hosaka, Toshihiro,Tanabe, Kiyoshi,Tavet, Fabrice,et al.

, p. 1157 - 1170 (2007/10/02)

Efficient methods for the Michael addition reactions of N-arylsulfonyl-3-phenylthiopiperidones (1) with both the protected amidoacrylates (4, 9) and the simple acrylates (12) have been developed.These reactions offer an efficient route to the 3-alkyl-substituted dihydropyridinones (3, 11), the dienophiles employed in the natural product synthesis.

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