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89543-87-3

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89543-87-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89543-87-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,5,4 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 89543-87:
(7*8)+(6*9)+(5*5)+(4*4)+(3*3)+(2*8)+(1*7)=183
183 % 10 = 3
So 89543-87-3 is a valid CAS Registry Number.

89543-87-3Relevant articles and documents

Synthesis of 5-Vinyl-2-isoxazolines by Palladium-Catalyzed Intramolecular O-Allylation of Ketoximes

Fernandes, Rodney A.,Gangani, Ashvin J.,Panja, Arpita

supporting information, p. 6227 - 6231 (2021/08/18)

An efficient method for the synthesis of 5-vinyl-2-isoxazolines by Pd-catalyzed intramolecular O-allylation of ketoximes has been developed. The reaction involves Pd(0)-catalyzed π-allyl formation via leaving group ionization or Pd(II)-catalyzed allylic C-H activation followed by intramolecular nucleophilic oxime oxygen attack. This methodology has been elaborated to various value-added products by epoxidation, Wacker oxidation, cross-metathesis, hydroboration-oxidation, dihydroxylation, and catalytic hydrogenation.

Stereoselective Osmylation of 5-Vinyl-4,5-dihydroisoxazoles

Annunziata, Rita,Cinquini, Mauro,Cozzi, Franco,Raimondi, Laura

, p. 403 - 405 (2007/10/02)

Osmium tetroxide-catalysed cis-hydroxylation of 5-vinyl-4,5-dihydroisoxazoles proceeds stereoselectively affording the anti-products in fair to excellent diastereoisomeric excess; an entry to optically active compounds is also described.

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