Lactones are (internal) cyclic esters of hydroxy-carboxylic acids:
The ester bond is between
X-C-O--H and H-O--(C=O)-Y to form
X-C-O--(C=O)-Y and H--O-H
(X and Y are linked by aliphatic hydrocarbon atoms)
Lactones are cyclic esters formed by the reaction between a carboxylic acid and a hydroxyl group. The functional groups involved in the formation of lactones are the carboxylic acid group (-COOH) and the hydroxyl group (-OH) on the same molecule.
Carbon, hydrogen and oxygen are the only elements that make up sugars.
Elements
nuclear fusion
there are 108 elements. most of them are metals.
Lactones are cyclic esters formed by the reaction between a carboxylic acid and a hydroxyl group. The functional groups involved in the formation of lactones are the carboxylic acid group (-COOH) and the hydroxyl group (-OH) on the same molecule.
An avermectin is any of a class of macrocyclic lactones, produced by Streptomyces bacteria, and used to kill parasites.
one of the sesquiterpene lactones, artemisinin, has shown promise as a treatment for breast cancer.
L. S. Chagonda has written: 'Approaches to the synthesis of steroidal a-methylene lactones'
Carbon, hydrogen and oxygen are the only elements that make up sugars.
To make study of elements easier.To classify elements.
Sesquiterpene lactones, predominantly parthenolide. Other phytochemicals include pyrethrin, volatile oils, tannins, bitter resin, and flavonoids.
Elements
nuclear fusion
No elements make time.
Carbon in the part where you draw with and then the elements that make wood which again is mostly carbon but there are many more elements that make up wood.
Yes, chemical compounds are made up of elements combined together.