Geminal systems 64.*N-Alkoxy-N-chloroureas and N,N-dialkoxyureas
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Дата
2015
ORCID
DOI
Науковий ступінь
Рівень дисертації
Шифр та назва спеціальності
Рада захисту
Установа захисту
Науковий керівник
Члени комітету
Видавець
Springer and Business Media, Inc.
Анотація
Molecular and crystal structures of N-alkoxy-N-chloroureas and N,N-dialkoxyureas were studied together with those of N-alkoxyureas as reference compounds. N-Alkoxy-N-chloroureas were found to have an elongated N—Cl bond and a shortened N—O(Alk) bond due to the nO(Alk)*N—Cl anomeric effect. Alcoholysis of N-alkoxy-N-chloro derivatives of urea, N´-arylureas, and carbamates in the presence of silver trifluoroacetate leads to sterically hindered N,N-dialkoxyureas, N,N-dialkoxy-N´-arylureas, and N,N-dialkoxycarbamates, respectively.
Опис
Ключові слова
N-alkoxy-N-chloroureas, anomeric effect, N-acyloxy-N-alkoxyureas, N-alkoxy-N-chlorocarbamates, alcoholysis, ureas, carbamates
Бібліографічний опис
Geminal systems 64.*N-Alkoxy-N-chloroureas and N,N-dialkoxyureas / V. G. Shtamburg [et al.] // Russian Chemical Bulletin. – 2015. – Vol.64, № 1. – P. 62-75.