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7295-34-3

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7295-34-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7295-34-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,9 and 5 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 7295-34:
(6*7)+(5*2)+(4*9)+(3*5)+(2*3)+(1*4)=113
113 % 10 = 3
So 7295-34-3 is a valid CAS Registry Number.

7295-34-3Relevant articles and documents

New gas-phase domino processes leading to benzopyranones and benzofurans

Aitken, R. Alan,Chang, Da

, p. 164 - 184 (2017/03/11)

A new domino approach to flavones by gas phase pyrolysis of β,γ-dioxophosphonium ylides containing a 2-methoxyphenyl group is frustrated by unexpected and novel decarbonylation of the intermediate flavon-3-yl radical leading to 2-phenylbenzofuran. Alternative approaches based on dioxolane protection of one carbonyl, or selective elimination in β,β′-dioxo or β-oxo-β′-thioxo ylides were not successful, but pyrolysis of a β-oxo-β′-phenylimino ylide did give the required domino reaction leading to a protected benzopyranone in moderate yield.

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