The use of N, N′-diisopropylcarbamimidate (1) to prepare a tert-butyl ester of a carboxylic
acid was required for the synthesis of a key pharmaceutical intermediate. Commercial …

We report the two-step one-pot preparation of a series of bulky substituted 1, 1′-
dicarbodiimidoferrocene pro ligands. In solution the compounds achieve equilibrium with …

The initial synthesis and characterization of a new family of amido-bis (amidate) early
transition metal compounds has lead to the development of a new class of 1, 1' …

For the last 50 years, a multitude of methods have been developed to access various
saturated and unsaturated four-membered rings containing two nitrogen atoms. Among the …

Unusual imino preference in 4 n azaheterocycles is theoretically analyzed. It is attributed to
less topological charge stability of the amino forms due to antisymmetric nonbonding …