524-97-0 Usage
Purification Methods
Crystallise it from EtOH, or pet ether. [Fukui & Nakayama Bull Chem Soc Jpn 42 1408 1969, Packler & Underwood Tetrtahedron 23 1817 1967, Beilstein 19 II 459, 19 III/IV 5789.]
Check Digit Verification of cas no
The CAS Registry Mumber 524-97-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,2 and 4 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 524-97:
(5*5)+(4*2)+(3*4)+(2*9)+(1*7)=70
70 % 10 = 0
So 524-97-0 is a valid CAS Registry Number.
InChI:InChI=1/C17H14O5/c1-18-9-2-3-10-13(4-9)19-7-12-11-5-15-16(21-8-20-15)6-14(11)22-17(10)12/h2-6,12,17H,7-8H2,1H3/t12-,17-/m0/s1
524-97-0Relevant articles and documents
Synthesis of pterocarpan-type heterocycles via oxidative cycloadditions of phenols and electron-rich arenes
Mohr, Amber L.,Lombardo, Vincent M.,Arisco, Teresa M.,Morrow, Gary W.
experimental part, p. 3845 - 3855 (2009/12/06)
Oxidation of 4-alkoxyphenols or 4-methoxynaphthol with phenyl iodonium(bis)trifluoroacetate (PIFA) in the presence of electron rich 2H-chromenes or dihydronaphthalenes affords pterocarpans or 5-carbapterocarpans via a formal [3+2] cycloaddition process. A
Formal 2 + 2 and 3 + 2 cycloaddition reactions of 2H-chromenes with 2-alkoxy-1,4-benzoquinones: Regioselective synthesis of substituted pterocarpans
Engler,Reddy,Combrink,Vander Velde
, p. 1248 - 1254 (2007/10/02)
-
