Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Marcel Gaudemar"'
Reinvestigation of the reaction of lithium trimethylsilyl acetate enolate with chlorothimethylsilane
Autor:
Moncef Bellassoued, Marcel Gaudemar
Publikováno v:
Tetrahedron Letters. 31:209-212
Reaction of lithium trimethylsilyl acetate enolate with chlorotrimethylsilane affords bis(trimethylsilyl) ketene acetal 1 or trimethylsilyl α-trimethylsilylated acetate 2 depending on the reaction conditions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d40b8e43c2bb90e08ee3b07487de7c5
https://doi.org/10.1016/s0040-4039(00)94372-7
https://doi.org/10.1016/s0040-4039(00)94372-7
Autor:
Marcel Gaudemar, Moncef Bellassoued
Publikováno v:
Tetrahedron Letters. 31:349-352
Treatment of acetaldehyde N-ter-butylimine by two equivalents of LDA, followed by trimethylsilyl chloride trapping affords the α,α-disilylated imine ; the latter reacts with aromatic aldehydes producing α,β-ethylenic aldehydes in excellent yields
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87e4790f370580947b4c3410ec3672b3
https://doi.org/10.1016/s0040-4039(00)94552-0
https://doi.org/10.1016/s0040-4039(00)94552-0
Autor:
Marcel Gaudemar, Moncef Bellassoued
Publikováno v:
ChemInform. 21
Treatment of acetaldehyde N-ter-butylimine by two equivalents of LDA, followed by trimethylsilyl chloride trapping affords the α,α-disilylated imine ; the latter reacts with aromatic aldehydes producing α,β-ethylenic aldehydes in excellent yields
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09129e29ca783efd22f770406bd9a18b
https://doi.org/10.1002/chin.199039135
https://doi.org/10.1002/chin.199039135
Publikováno v:
Synthesis. 1988:611-614
Addition de Michael avec des alcools, thiols, composes organiques du phosphore, l'aniline ou des composes organozinciques et organomagnesiens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df18d82c2976013ef8707c3ec4edc9f9
https://doi.org/10.1055/s-1988-27652
https://doi.org/10.1055/s-1988-27652
Publikováno v:
Synthetic Communications. 19:141-146
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f909a82dfbbe552a21f1c0116f19dda9
https://doi.org/10.1080/00397918908050962
https://doi.org/10.1080/00397918908050962
Publikováno v:
Tetrahedron. 37:2157-2163
Ivanov reagent and some other analogous reagents (phenyl acetique serie) have been condensed with t-Bu-4 cyclohexanone in order to complete investigation of the reactive species. In all the cases, equatorial attack is highly predominant; it let suppo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1140d4e83006e0928e77f3856ac2a238
https://doi.org/10.1016/s0040-4020(01)97974-8
https://doi.org/10.1016/s0040-4020(01)97974-8
Autor:
Marcel Gaudemar, Edith Favre
Publikováno v:
Journal of Organometallic Chemistry. 92:17-25
Condensations of aldehydes with allenyl boronates are stereoselective. The assignment of configuration is made on comparison of chromatographic, NMR and IR data.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::549770eec1a840ffcdea4a97ac8bc8cb
https://doi.org/10.1016/s0022-328x(00)91096-9
https://doi.org/10.1016/s0022-328x(00)91096-9
Autor:
Marcel Gaudemar, F. Gaudemar-Bardone
Publikováno v:
Journal of Organometallic Chemistry. 104:281-292
The deprotonation around −70°C of the ketones RCH 2 COCH 3 or R 2 CHCOCH 3 by Et 2 NLi in the mixture HMPT/benzene/ether gives the enolates RCH 2 C(OLi)CH 2 or R 2 CHC(OLi)CH 2 . The condensation of the latter with different aldehydes or ket
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9736a34fba51daa76fa3d2d09e98989
https://doi.org/10.1016/s0022-328x(00)91373-1
https://doi.org/10.1016/s0022-328x(00)91373-1
Publikováno v:
Synthesis. 1986:937-941
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d46b6fed7f81927347b2e7ab9f6337b
https://doi.org/10.1055/s-1986-31829
https://doi.org/10.1055/s-1986-31829
Publikováno v:
Journal of Organometallic Chemistry. 165:1-8
Aldoximes are converted to their dilithium derivatives by lithium diisopropylamide at 0°C in THF solution. These dianions react with electrophiles to give α-substituted aldoximes.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::571ebe76bc8e45e3a4bd4594840580ff
https://doi.org/10.1016/s0022-328x(00)81129-8
https://doi.org/10.1016/s0022-328x(00)81129-8