tert-Butyl N-(benzyloxy)carbamate is a protected amine. tert-Butyl N-(benzyloxy)carbamate is an N-alkyl-N-benzyloxy carbamate, and participates in facile intramolecular cyclization with various carbon nucleophiles to afford functionalized 5- and 6-membered protected cyclic hydroxamic acids.tert-Butyl N-(benzyloxy)carbamate was used in the preparation of seven-membered cyclic hydroxamic acids. tert-Butyl N-(benzyloxy)carbamate is a protected amine. tert-Butyl N-(benzyloxy)carbamate is an N-alkyl-N-benzyloxy carbamate, and participates in facile intramolecular cyclization with various carbon nucleophiles to afford functionalized 5- and 6-membered protected cyclic hydroxamic acids. tert-Butyl N-(benzyloxy)carbamate was used in the preparation of seven-membered cyclic hydroxamic acids.