308356-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 308356-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,8,3,5 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 308356-91:
(8*3)+(7*0)+(6*8)+(5*3)+(4*5)+(3*6)+(2*9)+(1*1)=144
144 % 10 = 4
So 308356-91-4 is a valid CAS Registry Number.
308356-91-4Relevant academic research and scientific papers
Asymmetric piperidine synthesis via 1,3-cyclic sulfates
Eskici,Gallagher
, p. 1360 - 1362 (2007/10/03)
Cyclic sulfates undergo a double alkylation with stabilized C,N-dianions derived from 3a/b to provide the piperidine ring system. The 4-substituted variant 7 affords a formal but stereochemically efficient synthesis of (S)-coniine.
