59253-21-3 Usage
Uses
2-Bromotetrahydrofuran is a reagent in the synthesis of 1-[4-(pyridin-2-yl)benzyl]imidazolidine-2,4-dione derivatives which are used as analgesics.
Check Digit Verification of cas no
The CAS Registry Mumber 59253-21-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,9,2,5 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 59253-21:
(7*5)+(6*9)+(5*2)+(4*5)+(3*3)+(2*2)+(1*1)=133
133 % 10 = 3
So 59253-21-3 is a valid CAS Registry Number.
59253-21-3Relevant articles and documents
UNEXPECTED SITE SELECTIVITY IN THE REACTION OF HALOTRIMETHYLSILANE WITH 2,5-DIMETHOXYTETRAHYDROFURAN AND 2,6-DIMETHOXYTETRAHYDROPYRAN
Chan, T. H.,Lee, S. D.
, p. 1225 - 1228 (1983)
Halotrimethylsilane cleaves 2,5-dimethoxytetrahydrofuran and 2,6-dimethoxytetrahydropyran with ring opening contrary to extrapolation from the monomethoxy compounds.