Acetylene derivatives of heterocycles - III. Synthesis of N-alkylpyrazolylacetylenes from methyl pyrazolyl ketones

M. S. Shvartsberg, S. F. Vasilevskii, V. G. Kostrovskii, I. L. Kotlyarevskii

Результат исследований: Материалы для журналаСтатья

3 Цитирования (Scopus)

Выдержка

4-Ethynyl-1,3,5-trimethylpyrazole and 3,5-diethynyl-1-methylpyrazole have been synthesized by the reaction of the corresponding methyl N-methyl-pyrazolyl ketones with PCl5 followed by dehydrochlorination. 4-Butadiynyl-1,3,5-trimethylpyrazole has been obtained similarly from 4-acetoacetyl-1,3,5-trimethylpyrazole. The N-substituted pyrazolylacetylenes have been subjected to the Chodkiewicz-Cadiot reaction and to dehydrocondensation. The IR spectra of the acetylene derivatives of pyrazole synthesized are discussed.

Язык оригиналаАнглийский
Страницы (с-по)797-800
Число страниц4
ЖурналChemistry of Heterocyclic Compounds
Том5
Номер выпуска6
DOI
СостояниеОпубликовано - 1 ноя 1972
Опубликовано для внешнего пользованияДа

Отпечаток

Acetylene
Ketones
Derivatives
pyrazole

ASJC Scopus subject areas

  • Organic Chemistry

Цитировать

Acetylene derivatives of heterocycles - III. Synthesis of N-alkylpyrazolylacetylenes from methyl pyrazolyl ketones. / Shvartsberg, M. S.; Vasilevskii, S. F.; Kostrovskii, V. G.; Kotlyarevskii, I. L.

В: Chemistry of Heterocyclic Compounds, Том 5, № 6, 01.11.1972, стр. 797-800.

Результат исследований: Материалы для журналаСтатья

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abstract = "4-Ethynyl-1,3,5-trimethylpyrazole and 3,5-diethynyl-1-methylpyrazole have been synthesized by the reaction of the corresponding methyl N-methyl-pyrazolyl ketones with PCl5 followed by dehydrochlorination. 4-Butadiynyl-1,3,5-trimethylpyrazole has been obtained similarly from 4-acetoacetyl-1,3,5-trimethylpyrazole. The N-substituted pyrazolylacetylenes have been subjected to the Chodkiewicz-Cadiot reaction and to dehydrocondensation. The IR spectra of the acetylene derivatives of pyrazole synthesized are discussed.",
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T1 - Acetylene derivatives of heterocycles - III. Synthesis of N-alkylpyrazolylacetylenes from methyl pyrazolyl ketones

AU - Shvartsberg, M. S.

AU - Vasilevskii, S. F.

AU - Kostrovskii, V. G.

AU - Kotlyarevskii, I. L.

PY - 1972/11/1

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N2 - 4-Ethynyl-1,3,5-trimethylpyrazole and 3,5-diethynyl-1-methylpyrazole have been synthesized by the reaction of the corresponding methyl N-methyl-pyrazolyl ketones with PCl5 followed by dehydrochlorination. 4-Butadiynyl-1,3,5-trimethylpyrazole has been obtained similarly from 4-acetoacetyl-1,3,5-trimethylpyrazole. The N-substituted pyrazolylacetylenes have been subjected to the Chodkiewicz-Cadiot reaction and to dehydrocondensation. The IR spectra of the acetylene derivatives of pyrazole synthesized are discussed.

AB - 4-Ethynyl-1,3,5-trimethylpyrazole and 3,5-diethynyl-1-methylpyrazole have been synthesized by the reaction of the corresponding methyl N-methyl-pyrazolyl ketones with PCl5 followed by dehydrochlorination. 4-Butadiynyl-1,3,5-trimethylpyrazole has been obtained similarly from 4-acetoacetyl-1,3,5-trimethylpyrazole. The N-substituted pyrazolylacetylenes have been subjected to the Chodkiewicz-Cadiot reaction and to dehydrocondensation. The IR spectra of the acetylene derivatives of pyrazole synthesized are discussed.

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