5090-87-9 Usage
General Description
2,3-Dihydro-3,6,9-trimethylnaphtho[1,8-bc]pyran-7,8-dione is a chemical compound with the molecular formula C17H16O3. It is a derivative of naphtho[1,8-bc]pyran-7,8-dione and is characterized by its three methyl groups attached to the naphtho[1,8-bc]pyran ring. 2,3-Dihydro-3,6,9-trimethylnaphtho[1,8-bc]pyran-7,8-dione has potential applications in organic synthesis and may serve as a building block for the development of new materials and pharmaceuticals. Its structure and properties make it a valuable tool in chemical research and drug discovery. Further studies on its reactivity and biological effects could lead to its use in various industrial and medical applications.
Check Digit Verification of cas no
The CAS Registry Mumber 5090-87-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,9 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 5090-87:
(6*5)+(5*0)+(4*9)+(3*0)+(2*8)+(1*7)=89
89 % 10 = 9
So 5090-87-9 is a valid CAS Registry Number.
InChI:InChI=1/C15H14O3/c1-7-4-5-10-8(2)6-18-15-9(3)13(16)14(17)11(7)12(10)15/h4-5,8H,6H2,1-3H3
5090-87-9Relevant articles and documents
Total synthesis of mansonone e
Fang, Xianhe,Hu, Xiangdong
, p. 137 - 139 (2014/04/17)
The synthesis of mansonone E was completed in six steps and 34% overall yield from commercially available starting material 3-bromo-4-methyl acetophenone. The thermal ring expansion of a cyclobutenedione derivative followed by an intramolecular 1,3-alkoxy exchange provided a facile route to the 1,2-naphthoquinone tricyclic structure of mansonone E.
INTRAMOLECULAR DIELS-ALDER REACTIONS OF BENZYNES APPLICATION TO THE TOTAL SYNTHESIS OF MANSONONE E
Best, Wayne M.,Wege, Dieter
, p. 4877 - 4880 (2007/10/02)
Substituted benzynes can be trapped intramolecularly by an attached furan moiety and such a reaction has been used in the synthesis of the naturally occuring o-naphthoquinone mansonone E.
