FIELD: chemistry of metalloorganic compounds, chemical technology.
SUBSTANCE: invention relates to methods for synthesis of novel organomagnesium compounds. Method involves interaction of disubstituted acetylenes with butylmagnesium bromide in the presence of a catalyst, in argon atmosphere under atmosphere pressure and temperature ˜200C, in ether solvent medium for 3 h followed by vacuum evaporation of ether, addition of N-methylmaleinimide at temperature -50C and stirring the reaction mass at temperature ˜200C in toluene medium for 6-8 h. The yield of the end product is 47-56%. Proposed method provides preparing the end compounds of the formula (1): wherein R means ethyl (Et), n-propyl (n-Pr), n-butyl (n-Bu) with high selectivity. Synthesis of these compounds is not describes in special literature. Synthesized compounds can be used in fine organic and metalloorganic synthesis, as co-catalysts in processes of oligo- and polymerization of olefins and coupled dienes.
EFFECT: improved method of synthesis.
1 tbl, 10 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR PREPARING 1,7,8,9-TETRAALKYL-4-OXA-10-MAGNESATRICYCLO[5.2.1.0]DEC-8-ENE-3,5-DIONES | 2006 |
|
RU2313527C1 |
METHOD FOR PREPARING 10-CHLORO-1,7,8,9-TETRAALKYL-4-METHYL-4-AZA-10-ALUMINATRICYCLO[5.2.1.0]DEC-8-ENE-3,5-DIONES | 2005 |
|
RU2295529C1 |
METHOD FOR PREPARING 1,7,8,9-TETRAALKYL-10-ETHYL-4-OXO-10-ALUMINATRICYCLO[5,2,1,0]-DEC-8-ENE-3,5-DIONES | 2004 |
|
RU2275374C2 |
METHOD FOR PREPARING 1,8,9,10-TETRAALKYL-11-MAGNESATRICYCLO[6.2.1.0]UNDEC-9-ENE-3,6-DIONES | 2006 |
|
RU2313528C1 |
METHOD FOR PREPARING 1,12,13,14-TETRAALKYL-15-MAGNESATETRACYCLO-[10.2.1.0.0]PENTADECA-4(9),5,7,13-TETRAENE-3,10-DIONES | 2006 |
|
RU2313530C1 |
METHOD FOR PREPARING 15-CHLORO-1,12,13,14-TETRAALKYL-15-ALUMINATETRACYCLO[10.2.1.0.0]PENTADECA-4(9),5,7,13-TETRAENE-3,10-DIONES | 2005 |
|
RU2295531C1 |
METHOD FOR PREPARING 11-CHLORO-1,8,9,10-TETRAALKYL-11-ALUMINATRICYCLO[6.2.1.0]UNDEC-9-ENE-3,6-DIONES | 2005 |
|
RU2295530C1 |
METHOD OF (9-ETHYL-1-CYCLONONENYL)MAGNESIUM HALOGENIDE OBTAINMENT | 2007 |
|
RU2355696C2 |
METHOD FOR SYNTHESIS OF 2,3-DIALKYL(ARYL)MAGNESACYCLOPENT-2-ENES | 2009 |
|
RU2409583C2 |
METHOD FOR COMBINED PRODUCTION OF 2,3-DIALKYLMAGNESACYCLOHEPT-2-ENES AND 4,5-DIALKYLMAGNESACYCLOHEPT-4-ENES | 2010 |
|
RU2547265C2 |
Authors
Dates
2007-12-27—Published
2006-05-06—Filed