87986-34-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87986-34-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,9,8 and 6 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 87986-34:
(7*8)+(6*7)+(5*9)+(4*8)+(3*6)+(2*3)+(1*4)=203
203 % 10 = 3
So 87986-34-3 is a valid CAS Registry Number.
87986-34-3Relevant articles and documents
Homologation of Acetals of α,β-Unsaturated Carbonyl Compounds with Diazo Esters. Synthesis of Acetals of β,γ-Unsaturated Carbonyl Compounds
Doyle, Michael P.,Trudell, Mark L.,Terpstra, Jan W.
, p. 5146 - 5148 (1983)
β,γ-Unsaturated acetals are conveniently prepared in good yields by boron trifluoride etherate catalyzed homologation of acetals of α,β-unsaturated aldehydes with ethyl diazoacetate.