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132352-74-0

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132352-74-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132352-74-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,3,5 and 2 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 132352-74:
(8*1)+(7*3)+(6*2)+(5*3)+(4*5)+(3*2)+(2*7)+(1*4)=100
100 % 10 = 0
So 132352-74-0 is a valid CAS Registry Number.

132352-74-0Relevant articles and documents

ALKOXYNITRENIUM ION CYCLISATIONS: EVIDENCE FOR DIFFERENT MECHANISMS IN THE FORMATION OF BENZOXAZINES AND BENZOXAZEPINES.

Glover, Stephen A.,Rowbottom, Colleen A.,Scott, Anthony P.,Schoonraad, Johan L.

, p. 7247 - 7262 (2007/10/02)

Deuterium labelling experiments and n.m.r. studies indicate that cyclisations of N-acyl-N-(2-phenylethyloxy)nitrenium ions occur via direct attack at the ortho position to give 3,4-dihydro-1H-2,1-benzoxazines.In contrast N-acyl-N-(3-phenylpropyloxy)nitrenium ions cyclise to 1,3,4,5-tetrahydro-2,1-benzoxazepines through ipso attack followed by 1,2-carbon migration.In both cases hydrogen circumambulation occurs in the sigma complex before aromatisation.

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