In organic chemistry, ortho acids are organic compound, hypothetical chemical compounds having the structure (R = alkyl or aryl).
Ortho acids themselves are unstable and cannot be isolated. However, can be synthesized by the Pinner reaction, in which react with alcohols under acid catalysis:
Historic definition
Historically the prefixes "
hypo-", "
per-", "
ortho-", "
meta-", and "
pyro-" were used to distinguish between different
of the same element, of these
ortho acid is the most highly
oxidised or
hydroxylated. For example, dehydration of orthoperiodic acid gives metaperiodic acid. Such naming conventions are now obsolete; however, various traditional names containing these prefixes have been retained in IUPAC nomenclature, namely:
-
orthosilicic acid,
-
orthotelluric acid,
-
orthophosphoric acid,
-
orthoboric acid,
Hypothetical chemical compounds