ketene

CH2==C==O;a very reactive acetylating agent, used in chemical syntheses. ... (05 Mar 2000) ...
Found on http://www.encyclo.co.uk/local/20973

ketene

any of a class of organic compounds containing the functional grouping C=C=O; the most important member of the class being ketene itself, CH2=C=O, ... [4 related articles]
Found on http://www.britannica.com/eb/a-z/k/24

ketene

Type: Term Pronunciation: kē′tēn Definitions: 1. a highly reactive acetylating agent, used in chemical syntheses. 2. Any substituted ketene.
Found on http://www.medilexicon.com/medicaldictionary.php?t=46961

Ketene

A ketene is an organic compound of the form R`RC=C=O. The term is also used specifically to mean ethenone, the simplest ketene, where R` and R are hydrogen atoms. Ketenes were first studied as a class by Hermann Staudinger. ==Formation== Ethenone, the simplest ketene, can be formed by pyrolysis (thermal cracking) of acetone: This reaction is cal.....
Found on http://en.wikipedia.org/wiki/Ketene
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