title: Synthesis and stability of new spiroaminoborate esters.
abstract: New spiroaminoborate esters derived from 1,1-diphenylprolinol, ephedrine and dihydroquinine with different alkoxy substituents were prepared as stable crystalline compounds and characterized by spectroscopical analysis and specific rotation. The structure of the spiroborate 4 derived from 1,1-diphenylprolinol and dicyclohexyl-1,1'-diol was confirmed by X-ray analysis.
authors.affiliation: Department of Chemistry, University of Puerto Rico - Humacao, Call Box 860, Humacao, Puerto Rico 00792, USA.
authors.forename: Viatcheslav
authors.initials: V
authors.lastname: Stepanenko
authors.forename: Melvin
authors.initials: M
authors.lastname: de Jesús
authors.forename: Carmelo
authors.initials: C
authors.lastname: Garcia
authors.forename: Charles L
authors.initials: CL
authors.lastname: Barnes
authors.forename: Margarita
authors.initials: M
authors.lastname: Ortiz-Marciales