lactoln.
/ˈlaktɒl/ Chemistry.
Any cyclic compound that is formed by the oxygen atom in a C(OH) group (esp. one in a sugar) becoming linked to the carbon atom of a carbonyl group in the same molecule (with the transfer of the hydrogen atom of the former group to the oxygen atom of the latter).
ΚΠ
1925 Chem. Abstr. 19 2931 The name lactol (aldolactol, ketolactol) is proposed for the cyclo-form of hydroxyaldehydes and ketones, the length of the O-bridge being indicated by Greek letters (as for the lactones) or by nos. in brackets (as for the sugars).
1967 I. L. Finar Org. Chem. (ed. 5) I. xviii. 486 The hemiacetol form (lactol) of a sugar [can] react with a molecule of an alcohol to form the acetal derivative, which is known under the generic name of glycoside; those of glucose are known as glucosides; of fructose, fructosides, etc.
This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2021).
<
n.1925- to be abused upon or in
- to be addicted to low company
- to be adreamed
- to be afed
- to be aforehand with
- to be afraid of one's own shadow
- to be after
- to be after someone with a sharp stick
- to be after with a sharp stick
- to be against
- to be against the government
- to be agin the government
- to be agreeably disappointed
- to be agreeably surprised
- to be agreed of
- to be agunning
- to be ahead of oneself
- to be all about
- to be all cherokee to
- to be all day
- to be all day for
- to be all day for someone
- to be all day with
- to be all day with someone
- to be all ears