| Literature DB >> 18612332 |
Tetsuo Iwasawa1, Paul Wash, Christoph Gibson, Julius Rebek.
Abstract
The reaction of carboxylic acids with carbodiimides is reviewed, and an "introverted" carboxylic acid is proposed as a means of trapping reactive intermediates along the reaction pathway. The introverted acid is a cavitand with the carboxylic function directed toward the floor of the cavity. Its reaction with diisopropyl carboodiimide gives a covalent adduct that is either the elusive O-acylisourea or the commonly encountered N-acylurea.Entities:
Year: 2007 PMID: 18612332 PMCID: PMC2031843 DOI: 10.1016/j.tet.2007.03.075
Source DB: PubMed Journal: Tetrahedron ISSN: 0040-4020 Impact factor: 2.457