55229-19-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55229-19-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,2,2 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 55229-19:
(7*5)+(6*5)+(5*2)+(4*2)+(3*9)+(2*1)+(1*9)=121
121 % 10 = 1
So 55229-19-1 is a valid CAS Registry Number.
55229-19-1Relevant academic research and scientific papers
O-Heterocycles from Unsaturated Carbonyls and Dimethoxycarbene
Croisetière, Jean-Philippe,Spino, Claude
, p. 5609 - 5618 (2018/05/08)
The (4+1)-annulation of dimethoxycarbene with readily accessible α,β-unsaturated carbonyls gives cyclic orthoesters, which can then be converted in just a few steps to other O-heterocycles, including methoxyfurans, furanones, and furans.
