Noun:

KETONE,

ketenes's Usage Examples:

of ketenes with unsaturated compounds to provide four-membered or larger rings.

He is also known for his discovery of ketenes and of the Staudinger reaction.

Thioketenes are organosulfur compounds analogous to ketenes with the general formula R2C=C=S, where R is alkyl or aryl.

Diphenylketene, like most disubstituted ketenes, is a red-orange oil at room temperature and pressure.

They undergo [2+2] cycloaddition to ketenes.

Ketenes with strong electron-donating substituents mainly produce cis β-lactams, while ketenes with strong electron-withdrawing.

a highly reactive ketene compound: These ketenes can be isolated using flash vacuum pyrolysis (FVP).

compounds which undergo [2+2] cycloadditions with the in situ generated ketenes.

When ketenes are formed in the presence of alkynes they proceed through pericyclic.

Achiral ketenes and imines, in the presence of a chiral nucleophilic catalyst, are allowed.

worked on stereochemistry and magnetochemistry and was close to identifying ketenes when he treated Ph2CHCOCl with n-Pr3N in 1901 at Tübingen.

products of the ketenes.

For example, the simple ketene (H2C=C=O) dimerizes to diketene (4-methylen-oxetan-2-one), while substituted ketenes, such as dimethyl.

rearrangement is the reaction of allylic ethers, amines, and thioethers with ketenes to give γ,δ-unsaturated esters, amides, and thioesters.

thesis topic was Studies of ketenes and their derivatives (1941).

The Hills used Grignard reagents to develop chemical syntheses of ketenes, which was funded by grants from the National Science Foundation (NSF).