56547-83-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56547-83-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,5,4 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 56547-83:
(7*5)+(6*6)+(5*5)+(4*4)+(3*7)+(2*8)+(1*3)=152
152 % 10 = 2
So 56547-83-2 is a valid CAS Registry Number.
56547-83-2Relevant articles and documents
Titanium mediated cyclization of N-substituted di(β-carbethoxyethyl)amines: Preparation of 1-substituted-3-carbethoxy-4-piperidones
Deshmukh,Sampath Kumar,Rama Rao
, p. 177 - 182 (2007/10/02)
Dieckmann cyclisation of N-substituted di(β-carbethoxyethyl)amines with titanium tetrachloride in DCM in the presence of triethylamine leads to the formation of 3-carbethoxy-4-piperidones.