Indenols, indenones and (arylcyclohexadienyl)Mn(CO)3 π-complexes from the thermally promoted reactions of alkynes with ortho-Mn(CO)4 aryl ketone, amide, ester and aldehyde derivatives
作者:Nicholas P. Robinson、Gary J. Depree、Rene W. de Wit、Lyndsay Main、Brian K. Nicholson
DOI:10.1016/j.jorganchem.2005.04.050
日期:2005.8
acetophenone (η2-2-acetylphenyl)Mn(CO)4 generally give 1H-inden-1-ols in good yield; effects of substituents and solvent on these reactions are reported, along with the crystal structure of 1-methyl-2,3-diphenyl-1H-inden-1-ol. The corresponding orthomanganated benzophenone similarly gives the indenol with diphenylacetylene but by exception, orthomanganated 3-acetylthiophene with phenylacetylene reacts via
的范围内与所述orthomanganated苯乙酮炔烃的热促进的反应(η 2 -2-乙酰基苯基)的Mn(CO)4通常得到1- ħ茚-1-醇以良好的收率; 报道了取代基和溶剂对这些反应的影响,以及1-甲基-2,3-二苯基-1H-茚满-1-醇的晶体结构。相应的正锰基二苯甲酮类似地使茚满醇与二苯基乙炔,但例外的是,正锰基3-乙酰基噻吩与苯乙炔通过三炔烃插入和环化反应,通过π络合物产物的晶体结构确定[[(1,2,3,4,5 -η)-2-(3-乙酰基噻吩-2-基)-1,3,5-三苯基环己二烯基]三羰基锰。N的相应的高锰酸衍生物,N-二甲基苯甲酰胺,3,4,5-三甲氧基苯甲酸甲酯和4-二甲基氨基苯甲醛均会生成带有二苯乙炔的茚满,但只有(乙)乙炔时,醛才会生成茚满酮,而酰胺和酯则会生成[(1,2,3, 4,5-η)-6-芳基环己二烯基] Mn(CO)3配合物。对这些配合物的1 H NMR分析表明,C6处的H与Mn(CO)3(内基-6-H;