Cyclization of vicinal acetylenic derivatives of pyrazolecarbonamides and benzamides

S. F. Vasilevskii, M. S. Shvartsberg

Результат исследований: Материалы для журналаСтатья

6 Цитирования (Scopus)

Выдержка

Vicinal acetylenic derivatives of pyrazolecarbonamides and benzamides cyclize in alcoholic solution in the presence of KOH with closure of the six- or fivemembered lactam ring. The formation of a γ-lactam (from o-phenylethynylbenzamide) has been noted for the first time. Condensation of vicinal iodopyrazolecarbonamides with copper phenylacetylide gives the pyrazolylacetylenes without concurrent intramolecular cyclization of the product to give the cyclopentadienone ring. We have been unable to repeat the reported similar cyclocondensation of o-iodobenzamide to 3-amino-2-phenylindenone.

Язык оригиналаАнглийский
Страницы (с-по)1901-1905
Число страниц5
ЖурналBulletin of the Academy of Sciences of the USSR Division of Chemical Science
Том39
Номер выпуска9
DOI
СостояниеОпубликовано - 1 сен 1990
Опубликовано для внешнего пользованияДа

Отпечаток

Benzamides
Lactams
Cyclization
Derivatives
Copper
Condensation

ASJC Scopus subject areas

  • Chemistry(all)

Цитировать

Cyclization of vicinal acetylenic derivatives of pyrazolecarbonamides and benzamides. / Vasilevskii, S. F.; Shvartsberg, M. S.

В: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, Том 39, № 9, 01.09.1990, стр. 1901-1905.

Результат исследований: Материалы для журналаСтатья

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