77215-01-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77215-01-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,2,1 and 5 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 77215-01:
(7*7)+(6*7)+(5*2)+(4*1)+(3*5)+(2*0)+(1*1)=121
121 % 10 = 1
So 77215-01-1 is a valid CAS Registry Number.
77215-01-1Relevant articles and documents
An efficient synthesis of oxetanones from α,β-epoxy diazomethyl ketones
Thijs,Cillissen,Zwanenburg
, p. 9985 - 9990 (2007/10/02)
Treatment of α,β-epoxy diazomethyl ketones 1a-h with SnCl4 in dichloromethane at -78°C leads to β-chloro-α-hydroxy diazoketones 3a-h in good yields. The opening of the epoxide ring takes place in a syn manner with retention of configuration at
