Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Characterization of alkali metal-isothiourea-boronate catalyst structures by (A) single-crystal X-ray diffraction; (B) IR spectroscopy; and (C) NMR studies. Hydrogen atoms and close contacts in the crystal structure of K-3f·THF are omitted for clarity. (D) Electrostatic potential map of anion derived from deprotonation of 3f. Red = electron-rich, blue = electron-poor. (E) Proposed model of catalyst structure-enantioselectivity relationship.
