Mannathan, Subramaniyan et al. published their research in Chemical Communications (Cambridge, United Kingdom) in 2013 | CAS: 16356-02-8

1,4-Dimethoxy-2-butyne (cas: 16356-02-8) 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.Reference of 16356-02-8

Nickel-catalyzed regio- and diastereoselective intermolecular three-component coupling of oxabicyclic alkenes with alkynes and organoboronic acids was written by Mannathan, Subramaniyan;Cheng, Chien-Hong. And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2013.Reference of 16356-02-8 This article mentions the following:

Reaction of oxabicyclic alkenes with alkynes and organoboronic acids in the presence of Ni(cod)2, P(t-Bu)3, and CsF in a binary solvent toluene-methanol (1:3) at 75 to 85 °C provided exo-5,6-disubstituted 7-oxanorbornene derivatives in good to excellent yields. E.g., in presence of Ni(cod)2, P(t-Bu)3, and CsF, three-component coupling of oxabicyclic alkene (I) with PhCCMe and (E)-PhCH:CHB(OH)2 gave 92% II. In the experiment, the researchers used many compounds, for example, 1,4-Dimethoxy-2-butyne (cas: 16356-02-8Reference of 16356-02-8).

1,4-Dimethoxy-2-butyne (cas: 16356-02-8) 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.Reference of 16356-02-8

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