Gold(I)-Catalyzed Enantioselective Synthesis of Pyrazolidines, Isoxazolidines, and Tetrahydrooxazines was written by La Londe, R. L.;Wang, Z. J.;Mba, M.;Lackner, A. D.;Toste, F. Dean. And the article was included in Angewandte Chemie, International Edition in 2010.Quality Control of N-(tert-Butoxycarbonylamino)phthalimide This article mentions the following:
Chiral ligands and chiral anions are employed in the gold(I)-catalyzed enantioselective intramol. additions of hydrazines and hydroxylamines to allenes. These complementary methods allow access to chiral vinyl isoxazolidines, oxazines, and differentially protected pyrazolidines. In the experiment, the researchers used many compounds, for example, N-(tert-Butoxycarbonylamino)phthalimide (cas: 34387-89-8Quality Control of N-(tert-Butoxycarbonylamino)phthalimide).
N-(tert-Butoxycarbonylamino)phthalimide (cas: 34387-89-8) belongs to indole derivatives. Indole, also called Benzopyrrole, a heterocyclic organic compound occurring in some flower oils, such as jasmine and orange blossom, in coal tar, and in fecal matter. More than 200 indole derivatives have already been marketed as drugs or are under advanced stages of clinical trials.Quality Control of N-(tert-Butoxycarbonylamino)phthalimide
Referemce:
Indole alkaloid derivatives as building blocks of natural products from聽Bacillus thuringiensis聽and聽Bacillus velezensis聽and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles