1242164-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1242164-90-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,2,1,6 and 4 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1242164-90:
(9*1)+(8*2)+(7*4)+(6*2)+(5*1)+(4*6)+(3*4)+(2*9)+(1*0)=124
124 % 10 = 4
So 1242164-90-4 is a valid CAS Registry Number.
1242164-90-4Relevant articles and documents
Diastereoselective bromocyclization of O-allyl-N-tosyl-hydroxylamines
Egart, Boris,Lentz, Dieter,Czekelius, Constantin
, p. 2490 - 2499 (2013)
The intramolecular bromoamination of O-allyl-N-tosyl-hydroxylamines results in the formation of isoxazolidines via selective 5-endo-tet cyclization. This process occurs trans-selectively in high yield and diastereoselectivity. The obtained bromo-isoxazoli