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156149-48-3

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156149-48-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 156149-48-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,1,4 and 9 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 156149-48:
(8*1)+(7*5)+(6*6)+(5*1)+(4*4)+(3*9)+(2*4)+(1*8)=143
143 % 10 = 3
So 156149-48-3 is a valid CAS Registry Number.

156149-48-3Relevant articles and documents

Telescoped synthesis of C3-functionalized (E)-arylamidines using Ugi-Mumm and regiospecific quinazolinone rearrangements

Jaffett, Victor A.,Nerurkar, Alok,Cao, Xufeng,Guzei, Ilia A.,Golden, Jennifer E.

supporting information, p. 3118 - 3128 (2019/03/26)

An efficient four-step, six-transformation protocol was developed to afford bioactive N-alkyl- or N-arylamide (E)-arylamidines featuring strategic amidine C3 modifications which were inaccessible or low yielding by previous methods. This synthetic approac

Parallel fluorous biphasic synthesis of 3H-quinazolin-4-ones by an Aza-Wittig reaction employing perfluoroalkyl-tagged triphenylphosphine

Barthélémy, Sophie,Schneider, Siegfried,Bannwarth, Willi

, p. 807 - 810 (2007/10/03)

A perfluoroalkyl-tagged triphenylphosphine was applied in a fluorous biphasic system for the efficient parallel synthesis of 3H-quinazolin-4-ones via an Aza-Wittig reaction. The products were isolated by solid-phase extraction on fluorous reversed-phase silica gel. A new solid-phase bound phosphine derivative was used for comparison and yielded similar results.

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