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153905-32-9

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153905-32-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 153905-32-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,3,9,0 and 5 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 153905-32:
(8*1)+(7*5)+(6*3)+(5*9)+(4*0)+(3*5)+(2*3)+(1*2)=129
129 % 10 = 9
So 153905-32-9 is a valid CAS Registry Number.

153905-32-9Relevant articles and documents

APPLICATION OF THE PHOTO-FRIES REARRANGEMENT OF ARYL N-CHLOROACETYLANTHRANYLATES AS KEY STEP IN THE SYNTHESIS OF 5-(2-HYDROXYPHENYL)-1,3-DIHYDRO-2H-1,4-BENZODIAZEPIN-2-ONES

Algarra, Felipe,Miranda, Miguel A.

, p. 2335 - 2344 (2007/10/02)

Condensation of isatoic anhydride with phenols, followed by treatment of the resulting aryl anthranylates (4) with chloroacetyl chloride gives aryl N-chloroacetylanthranylates (5).Their uv-irradiation results in photo-Fries rearrangement, to afford benzophenones (6).Direct treatment of the latter with ammonia gives rise to 1,3-quinazolines (7); by contrast, treatment of 6 with potassium iodide and subsequently with ammonia leads to 1,3-dihydro-2H-1,4-benzodiazepin-2-ones (1).

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