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1280608-83-4

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1280608-83-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1280608-83-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,0,6,0 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1280608-83:
(9*1)+(8*2)+(7*8)+(6*0)+(5*6)+(4*0)+(3*8)+(2*8)+(1*3)=154
154 % 10 = 4
So 1280608-83-4 is a valid CAS Registry Number.

1280608-83-4Downstream Products

1280608-83-4Relevant articles and documents

Synthesis of isoxazoles en route to semi-aromatized polyketides: Dehydrogenation of benzonitrile oxide-para-quinone acetal cycloadducts

Hashimoto, Yoshimitsu,Takada, Akiomi,Takikawa, Hiroshi,Suzuki, Keisuke

scheme or table, p. 6003 - 6009 (2012/08/28)

A variety of highly functionalized polycyclic isoxazoles are prepared by a two-step protocol: (1) 1,3-dipolar cycloaddition of o,o′-disubstituted benzonitrile oxides to para-quinone mono-acetals, then (2) dehydrogenation. The cycloaddition proceeds in a regioselective manner, favouring the formation of the 4-acyl cycloadducts, which are suitable intermediates for the synthesis of semi-aromatized polycyclic targets derived from polyketide type-II biosynthesis.

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