72284-55-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72284-55-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,2,8 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 72284-55:
(7*7)+(6*2)+(5*2)+(4*8)+(3*4)+(2*5)+(1*5)=130
130 % 10 = 0
So 72284-55-0 is a valid CAS Registry Number.
InChI:InChI=1/C26H28N2O6/c1-5-33-25(29)22-17(3)27(16-19-11-8-7-9-12-19)18(4)23(26(30)34-6-2)24(22)20-13-10-14-21(15-20)28(31)32/h7-15,24H,5-6,16H2,1-4H3
72284-55-0Relevant academic research and scientific papers
Novel synthese of heterocycles with N-(1-haloalkyl)azinium halides. Part 5. Preparation of N-substituted 1,4-dihydropyridines
Vanden Eynde,Mayence,Maquestiau,Anders
, p. 3291 - 3304 (2007/10/02)
Thirty N-substituted Hantzsch 1,4-dihydropyridines were prepared under mild and neutral conditions from N-substituted enaminocarbonyl derivatives and aldehydes activated under the form of N-(1-chloroalkyl)pyridinium chlorides by means of thionyl chloride