Metal-free oxidative cross-dehydrogenative coupling of quinones with benzylic C(sp3)-H bonds was written by Dong, Yu;Yang, Jian;He, Shuai;Shi, Zhi-Chuan;Wang, Yu;Zhang, Xiao-Mei;Wang, Ji-Yu. And the article was included in RSC Advances in 2019.HPLC of Formula: 605-94-7 This article mentions the following:
A metal-free cross-dehydrogenative coupling of quinones with toluene derivatives has been established. A series of quinones were subjected to reaction with toluene derivatives in the presence of di-tertbutyl peroxide (DTBP) for direct synthesis of benzylquinones such as I [R = H, Me, c-hexyl, etc.; R1 = R2 = H, Me; Ar = Ph, 4-MeC6H4, 4-ClC6H4, etc.]. The method exhibited good functional group tolerance and desired products were obtained in moderate to good yields. Meanwhile, a radical pathway was proposed to describe the cross-dehydrogenative coupling of quinones with toluene derivatives In the experiment, the researchers used many compounds, for example, 2,3-Dimethoxy-5-methylcyclohexa-2,5-diene-1,4-dione (cas: 605-94-7HPLC of Formula: 605-94-7).
2,3-Dimethoxy-5-methylcyclohexa-2,5-diene-1,4-dione (cas: 605-94-7) belongs to ethers. Ether is less polar than esters, alcohols or amines because of the oxygen atom that is unable to participate in hydrogen bonding due to the presence of bulky alkyl groups on both sides of the oxygen atom. But ether is more polar than alkenes. Ethyl ether is an excellent solvent for extractions and for a wide variety of chemical reactions. It is also used as a volatile starting fluid for diesel engines and gasoline engines in cold weather. Dimethyl ether is used as a spray propellant and refrigerant. Methyl t-butyl ether (MTBE) is a gasoline additive that boosts the octane number and reduces the amount of nitrogen-oxide pollutants in the exhaust. The ethers of ethylene glycol are used as solvents and plasticizers.HPLC of Formula: 605-94-7
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem