CONFORMATIONAL ANALYSIS OF INDO- CONTAINING BROMNITROETHYLPHOSPHO- NATES AND PROPANOATES
Using the 1H NMR method, we analyzed the spin - spin3JAP and 3JAB proton constants with a double bond ofdiasteremers of gem- bromindolylnitroethylphosphonates and -propanoates. On the basis of this, it has been estab- lished that the substituents at the C1 carbon atom have the preferred erythro configuration, and at the C2 carbon atom, the threo configuration.