221010-68-0 Usage
General Description
9,9-DIMETHYL-9H-FLUORENE-2,7-DIOL is a chemical compound with the molecular formula C15H14O2. It is a derivative of fluorene, which is a polycyclic aromatic hydrocarbon. 9,9-DIMETHYL-9H-FLUORENE-2,7-DIOL is a diol, meaning it has two hydroxyl groups (-OH) attached to its structure. It is used in organic synthesis and chemical reactions, and it has potential applications in the pharmaceutical industry as a building block for drug molecules. Its unique structure and reactivity make it a valuable compound for research and development in the field of organic chemistry and drug discovery.
Check Digit Verification of cas no
The CAS Registry Mumber 221010-68-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,0,1 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 221010-68:
(8*2)+(7*2)+(6*1)+(5*0)+(4*1)+(3*0)+(2*6)+(1*8)=60
60 % 10 = 0
So 221010-68-0 is a valid CAS Registry Number.
InChI:InChI=1/C15H14O2/c1-15(2)13-7-9(16)3-5-11(13)12-6-4-10(17)8-14(12)15/h3-8,16-17H,1-2H3
221010-68-0Relevant articles and documents
Facile synthesis and characterization of indene-fused 4-methylcoumarins and an unexpected skeletal rearrangement via Pechmann condensation
Wu, Jie,Liu, Wei,Liang, Li,Gan, Ya,Xia, Shuang,Gou, Xiaojun,Sun, Xiaohua
, (2020)
The Pechmann condensation of phenolic fluorenes with ethyl acetoacetate afforded indene-fused 4-methylcoumarins. In addition to the expected indeno[1,2-g]coumarin, a skeletal rearranged compound was obtained as a concomitant product when 9,9-dimethyl-9H-fluorene-2,7-diol was utilized as the substrate. X-ray crystallography was used to identify the structures of the isomers. Photochemical and photophysical studies indicated that compared with the non-rearranged products, the skeletal rearranged isomers have red shifted absorption maxima and much higher fluorescence quantum yields. A mechanism involving two competitive pathways for the simultaneous production of isomers was proposed.
