2-Aminopyrrolyl Dilithium Compounds: Synthesis, Structural Diversity, and Catalytic Activity for Amidation of Aldehydes with Amines
摘要:
Five dilithium compounds containing bidentate dianionic pyrrolyl ligands, [{2-(CH3NCH2)C4H3N}Li-2(TMEDA)(3)] (1), {[mu-eta(5)-2- [ CH3CH2NCH2] C4H3N]Li-2(TMEDA)}(2) (2), {[Pris eta(5):eta(1)-2-[(CH3)(3)CNCH2]C4H3N]Li-2(TMEDA)}(2) (3), {[eta(5)-2-[(CH3)(2)CHNCH2]C4H3N]Li-2 (TMEDA)}(2) (4), and {[eta(5)-2-[(CH2)(5)CHNCH2]C4H3N1Li2(TMEDA)}(2) (5), were synthesized, and their structural features were provided. Compounds 1-5 were proved to be a series of efficient catalysts for amidation reactions of aldehydes with amines in good to excellent yields under mild conditions.
Aminoalkylbenzotriazoles: reagents for the aminoalkylation of electron rich heterocycles
摘要:
Secondary and tertiary aminoalkylbenzotriazoles react with pyrrole, indole, their N-methyl analogs and with 2-methylfuran under mild reaction conditions in the presence of a Lewis acid to afford selectively the corresponding secondary or tertiary amines.
EQUILIBRATED DYNAMIC MIXTURES TO CONTROL THE RELEASE OF PERFUMING ALDEHYDES AND KETONES
申请人:Herrmann Andreas
公开号:US20140038873A1
公开(公告)日:2014-02-06
The present invention concerns a dynamic mixture obtained by combining, in the presence of water, at least one diamine derivative, comprising at least one heteroaryl moiety, with at least two perfuming aldehydes and/or ketones. The invention's mixture is capable of releasing in a controlled and prolonged manner said perfuming compounds, in particular perfuming ingredients, into the surrounding environment. The invention's dynamic mixture gives rise to a more evenly distributed positive effect for the release of the different carbonyl compounds which are part of the mixture than other examples reported in the prior art.
2,3-Dihydro-1H-imidazo [1.5-a]pyrroles. Condensation of Pyrroles and Formaldehyde and Primary Amines
作者:William J. Burke、George N. Hammer
DOI:10.1021/ja01634a028
日期:1954.3
US9212335B2
申请人:——
公开号:US9212335B2
公开(公告)日:2015-12-15
[EN] EQUILIBRATED DYNAMIC MIXTURES TO CONTROL THE RELEASE OF PERFUMING ALDEHYDES AND KETONES<br/>[FR] MÉLANGES DYNAMIQUES ÉQUILIBRÉS POUR CONTRÔLER LA LIBÉRATION D'ALDÉHYDES ET DE CÉTONES ODORANTS
申请人:FIRMENICH & CIE
公开号:WO2012139912A1
公开(公告)日:2012-10-18
The present invention concerns a dynamic mixture obtained by combining, in the presence of water, at least one diamine derivative, comprising at least one heteroaryl moiety, with at least two perfuming aldehydes and/or ketones. The invention's mixture is capable of releasing in a controlled and prolonged manner said perfuming compounds, in particular perfuming ingredients, into the surrounding environment. The invention's dynamic mixture gives rise to a more evenly distributed positive effect for the release of the different carbonyl compounds which are part of the mixture than other examples reported in the prior art.
2-Aminopyrrolyl Dilithium Compounds: Synthesis, Structural Diversity, and Catalytic Activity for Amidation of Aldehydes with Amines
作者:Zhiqiang Guo、Qiao Liu、Xuehong Wei、Yongbin Zhang、Hongbo Tong、Jianbin Chao、Jianping Guo、Diansheng Liu
DOI:10.1021/om4006609
日期:2013.8.26
Five dilithium compounds containing bidentate dianionic pyrrolyl ligands, [2-(CH3NCH2)C4H3N}Li-2(TMEDA)(3)] (1), [mu-eta(5)-2- [ CH3CH2NCH2] C4H3N]Li-2(TMEDA)}(2) (2), [Pris eta(5):eta(1)-2-[(CH3)(3)CNCH2]C4H3N]Li-2(TMEDA)}(2) (3), [eta(5)-2-[(CH3)(2)CHNCH2]C4H3N]Li-2 (TMEDA)}(2) (4), and [eta(5)-2-[(CH2)(5)CHNCH2]C4H3N1Li2(TMEDA)}(2) (5), were synthesized, and their structural features were provided. Compounds 1-5 were proved to be a series of efficient catalysts for amidation reactions of aldehydes with amines in good to excellent yields under mild conditions.