100152-08-7

Basic information

• Product Name: 9',9'A-dihydro-4'aH-spiro[chroman-2,1'-xanthen]-2'-one
• Synonyms: 9',9'A-dihydro-4'aH-spiro[chroman-2,1'-xanthen]-2'-one
• CAS NO: 100152-08-7
• Molecular Weight: 318.372
• Mol File: 100152-08-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 9',9'A-dihydro-4'aH-spiro[chroman-2,1'-xanthen]-2'-one(CAS DataBase Reference)
• NIST Chemistry Reference: 9',9'A-dihydro-4'aH-spiro[chroman-2,1'-xanthen]-2'-one(100152-08-7)
• EPA Substance Registry System: 9',9'A-dihydro-4'aH-spiro[chroman-2,1'-xanthen]-2'-one(100152-08-7)

Safety Data

• Hazardous Substances Data: 100152-08-7(Hazardous Substances Data)

Upstream product

• 18885-85-3 2-phenyl-4H-benzo-1,3,2-dioxaborine 

Relevant articles and documents

Tetramer of ortho-methylene quinone.

High vacuum thermolysis of 2-phenyl-4H-benzo-1,3,2-dioxaborine 5 gives a mixture of known trimer 4 and unknown tetramer 6 of o-methylene quinone.According to the IR, NMR and MS spectra two structures of 6 are possible: 6a or 6b.The problem was solved by X-ray diffraction.The crystals of C28H24O4 are monoclinic, P21/c, with a = 19.498(4), b = 6.194(1), c = 17.824(5) Angstroem, β = 93.08(2) deg, V = 2149(1) Angstroem3, Z = 4, Dc = 1.31 g.cm-3.The X-ray diffraction analysis shows the structure 6a of tetramer which is formed regiospecifically from two molecules of dimer 3. thermolysis / ortho-methylene quinone / X-ray crystal structure determination