The synthesis of 1,5,7,10-tetraoxygenated 3-methylphenanthrenes was written by Finnie, Alistair A.;Hill, Robert A.. And the article was included in Journal of Chemical Research, Synopses in 1987.Formula: C10H12O3 This article mentions the following:
Treating 3,5-(MeO)2C6H3CH2CN with BuLi and then 4,2,6-Me(MeO)2C6H2CO2Me gave 4,2,6-Me(MeO)2C6H2COCH(CN)C6H3(OMe)2-3,5 (I). Treating I with Ac2O and H2SO4 and then irradiation gave phenanthrene II (R = cyano, R1 = Ac) (III). Treating II (R = cyano, R1 = H) with Raney Ni in HCO2H gave phenanthrene II (R = R1 = H). Treating III with Br2 in AcOH gave mono- and dibromides IV (R2-R4 = H, Br), with the product ratios dependent on reaction temperature and stoichiometry. In the experiment, the researchers used many compounds, for example, Methyl 2-methoxy-4-methylbenzoate (cas: 81245-24-1Formula: C10H12O3).
Methyl 2-methoxy-4-methylbenzoate (cas: 81245-24-1) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Formula: C10H12O3
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics