28562-58-5 Usage
Chemical Properties
WHITE TO YELLOW CRYSTALLINE POWDER
Check Digit Verification of cas no
The CAS Registry Mumber 28562-58-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,5,6 and 2 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 28562-58:
(7*2)+(6*8)+(5*5)+(4*6)+(3*2)+(2*5)+(1*8)=135
135 % 10 = 5
So 28562-58-5 is a valid CAS Registry Number.
InChI:InChI=1/C10H9NO3/c12-8-6-9(11-8)14-10(13)7-4-2-1-3-5-7/h1-5,9H,6H2,(H,11,12)/t9-/m0/s1
28562-58-5Relevant articles and documents
Acyloxylation at the 4-Position of Azetidin-2-ones
Easton, Christopher J.,Love, Stephen G.,Wang, Peng
, p. 277 - 282 (2007/10/02)
The copper-catalysed reaction of azetidin-2-ones with t-butyl perbenzoate or peracetate affords the corresponding 4-benzoyloxy- and acetoxy-substituted β-lactams, respectively.N-Unsubstituted 4-acyloxyazetidinones can be synthesized by dearylation of the N-(4-methoxyphenyl)-substituted products with ceric ammonium nitrate.Acyloxylation of β-lactams that are monosubstituted at C-3 affords predominantly trans-products.
