502765-46-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 502765-46-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,2,7,6 and 5 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 502765-46:
(8*5)+(7*0)+(6*2)+(5*7)+(4*6)+(3*5)+(2*4)+(1*6)=140
140 % 10 = 0
So 502765-46-0 is a valid CAS Registry Number.
502765-46-0Relevant articles and documents
Asymmetric double aldol reaction of chiral acetyloxazolidinone
Furuno, Hiroshi,Inoue, Tadashi,Abiko, Atsushi
, p. 8297 - 8299 (2002)
Treatment of chiral oxazolidinone with Bu2BOTf (2.5 equiv.) and Et3N (3.0 equiv.) quantitatively produced the doubly borylated enolate, which afforded the double aldol products with high diastereoselectivity after reaction with aldehydes.
