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pro vyhledávání: '"J. C. W. Postma"'
Autor:
J. F. Arens, J. C. W. Postma
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 75:1385-1396
The reaction of aldehydes with ethoxyethynylmagnesium bromide does not yield the expected secondary carbinols. In the case of aromatic aldehydes the reaction products are formed from two molecules of the aldehyde and one molecule of the acetylenic co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d7e9e7b2cb9946efb32af5097235bbb
https://doi.org/10.1002/recl.19560751205
https://doi.org/10.1002/recl.19560751205
Autor:
J. C. W. Postma, J. F. Arens
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 75:1377-1384
Ethoxyethynylcarbinols, which can be prepared from carbonyl compounds and metallic derivatives of ethoxyacetylene, react with amines in three different ways. Strongly basic amines like diethylamine mainly cause reaction A, dissociation of the carbino
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b35d8389fb4bde644c039aa5919af8f
https://doi.org/10.1002/recl.19560751204
https://doi.org/10.1002/recl.19560751204
Autor:
J. C. W. Postma, J. F. Arens
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 75:1408-1410
Secondary ethoxyethynylcarbinols cannot be obtained from aldehydes and ethoxyethynylmagnesium bromide. The substances can be prepared, however, by interaction of the aldehydes with ethoxyethynyl-lithium. The secondary carbinols are rearranged to α,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dedbcd15afe744340997815c87634ceb
https://doi.org/10.1002/recl.19560751207
https://doi.org/10.1002/recl.19560751207