Lactime

The lactimes ( singular : the lactime ) are a group of substances in organic chemistry . They are in equilibrium with their tautomeric form, the lactams . They are cyclic nitrogen compounds which contain the functional group -N = C-OH. The transformation of the tautomeric forms into one another via an inter -molecular mechanism. Lactams - cyclic compounds with the –NH – CO– group as a ring member - give rise to the corresponding lactimes and vice versa ( lactam-lactime tautomerism , prototropy ), see e.g. B. γ-butyrolactam and γ-butyrolactim:

Analogous to lactams, the names of lactimes are preceded by Greek letters in the nomenclature , which indicate how many carbon atoms there are in the ring next to the C – OH group (γ = 3, δ = 4).

See also

• Lactams
• Lactones
• Lactols
• Sultame
• Sultime

Individual evidence

1. ↑ Otto-Albrecht Neumüller (Ed.): Römpps Chemie-Lexikon. Volume 3: H-L. 8th revised and expanded edition. Franckh'sche Verlagshandlung, Stuttgart 1983, ISBN 3-440-04513-7 , p. 2305.
2. ^ Albert Gossauer: Structure and reactivity of biomolecules , Verlag Helvetica Chimica Acta, Zurich, 2006, p. 425, ISBN 978-3-906390-29-1 .