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(5R,7R,8R,9S)-3-(2,6-Dichlorophenyl)-8,9-isopropylidenedioxy-7-methoxy-1,6-dioxa-2-azaspiro[4.4]non-2-ene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

243980-55-4

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243980-55-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 243980-55-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,3,9,8 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 243980-55:
(8*2)+(7*4)+(6*3)+(5*9)+(4*8)+(3*0)+(2*5)+(1*5)=154
154 % 10 = 4
So 243980-55-4 is a valid CAS Registry Number.

243980-55-4Downstream Products

243980-55-4Relevant academic research and scientific papers

Carbocyclic ring closure of hex-5-enopyranosides and pent-4-enofuranosides: A nitrile oxide approach

Gallos, John K.,Koftis, Theocharis V.

, p. 415 - 423 (2001)

A nitrile oxide approach on the carbocyclic ring closure of hex-5-enopyranosides and pent-4-enofuranosides was studied. The densely functionalised cyclopentane and cyclohexane derivatives were found suitable for the synthetic transformations. The N-O bond

A novel carbocyclic ring closure of hex-5-enopyranosides and pent-4- enofuranosides

Gallos, John K.,Koftis, Theocharis V.,Koumbis, Alexandras E.,Moutsos, Vassilios I.

, p. 1289 - 1291 (2007/10/03)

Nitrile oxide cycloadditions to hex-5-enopyranosides and pent-4- enofuranosides give spiroisoxazolines, which upon reductive opening of the heterocyclic ring undergo spontaneous intramolecular aldol-like condensation to give six- and five-membered densely

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