39212-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39212-40-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,2,1 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 39212-40:
(7*3)+(6*9)+(5*2)+(4*1)+(3*2)+(2*4)+(1*0)=103
103 % 10 = 3
So 39212-40-3 is a valid CAS Registry Number.
39212-40-3Relevant academic research and scientific papers
INTRAMOLECULAR PRINS REACTION AND CATALYSTS SUITABLE THEREFOR
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Page/Page column 42, (2008/06/13)
The present invention relates to a process for the preparation of a compound of the formula B having the following steps: provision of a compound of the formula A intramolecular reaction of the compound of the formula A in the presence of an aluminium siloxide of the formula (Ia) or (Ib).