A series of functionalized 2,6-dialkyl-cis-1,3,5,7-tetraoxadecalin podands (3-10, alkyl = hydroxy-, mesyloxy-, halo-, azido- and aminomethyl and -ethyl) were prepared, characterized, and used as precursors for a new and interesting class of macrocycles and cryptands (12-21), with the aim to use these as host-guest inclusion systems. Extensive spectroscopic work was performed, structural endorsement
Desymmetrization Reactions: A Convenient Synthesis of Aromatic Diamide Diamines
作者:Claude Picard、Nathalie Arnaud、Pierre Tisnès
DOI:10.1055/s-2001-16076
日期:——
0039-7881 Abstract: A two-step process for the synthesis of various diamide diamines derived from 1,n-diamino benzene compounds is described. The amidation reaction is simple, mild, involves readily available bis(N-acylthiazolidine-2-thione) derivatives as acylating agents and requires only stoichiometric equivalents of diamine and acylating agents.