Synthesis and Stereochemistry of Some 1,3-Oxazolidine Systems Based on TRIS (α,α,α-Trimethylolaminomethane) and Related Aminopolyols Skeleton. Part 1: (Di)spiro-1,3-oxazolidines

Synthesis of the title compounds is examined from the diastereoselectivity point of view; their stereochemical assignments are supported by high resolution NMR data, which are used to define their chirality and isomerisation aspects.