56058-23-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56058-23-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,0,5 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 56058-23:
(7*5)+(6*6)+(5*0)+(4*5)+(3*8)+(2*2)+(1*3)=122
122 % 10 = 2
So 56058-23-2 is a valid CAS Registry Number.
56058-23-2Relevant articles and documents
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.