Liu, Ling-yan et al. published their research in Tetrahedron: Asymmetry in 2007 | CAS: 57179-35-8

3-Hydroxy-5-methoxybenzaldehyde (cas: 57179-35-8) 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. 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.Electric Literature of C8H8O3

A structurally simple L-proline derivative promotes the asymmetric allylation of aldehydes with tribromoallyltin was written by Liu, Ling-yan;Sun, Jing;Liu, Nan;Chang, Wei-xing;Li, Jing. And the article was included in Tetrahedron: Asymmetry in 2007.Electric Literature of C8H8O3 This article mentions the following:

An asym. allylation of aldehydes with the allyltin tribromide was achieved using the L-proline derivative as a chiral promoter in dichloromethane in the presence of a Lewis base. Various optically active homoallylic alcs. were obtained in high yields with moderate enantioselectivities of up to 62% ee. In the experiment, the researchers used many compounds, for example, 3-Hydroxy-5-methoxybenzaldehyde (cas: 57179-35-8Electric Literature of C8H8O3).

3-Hydroxy-5-methoxybenzaldehyde (cas: 57179-35-8) 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. 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.Electric Literature of C8H8O3

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem