On-water magnetic NiFe<sub>2</sub>O<sub>4</sub> nanoparticle-catalyzed Michael additions of active methylene compounds, aromatic/aliphatic amines, alcohols and thiols to conjugated alkenes
作者:Soumen Payra、Arijit Saha、Subhash Banerjee
DOI:10.1039/c6ra21160g
日期:——
Here, we have demonstrated the Michael addition of active methylene compounds, aromatic/aliphaticamines, thiols and alcohols to conjugated alkenes using magnetic nano-NiFe2O4 as reusable catalyst in water. Nano-NiFe2O4 efficiently catalyzed the formation of C–C and C–X (X = N, S, O etc.) bond through 1,4-addition reactions.
在这里,我们已经证明了使用磁性纳米NiFe 2 O 4作为在水中可重复使用的催化剂将活性亚甲基化合物,芳香族/脂肪族胺,硫醇和醇的迈克尔加成到共轭烯烃上。纳米NiFe 2 O 4通过1,4-加成反应有效催化了CC和CX (X = N,S,O等)键的形成。
NOVEL COMPOUNDS
申请人:HALSALL Christopher Thomas
公开号:US20080009482A1
公开(公告)日:2008-01-10
There is provided a compound of formula (I):
processes for the manufacture thereof, pharmaceutical compositions thereof and uses in therapy.
提供了一个化合物的化学式(I):
其制备方法,药物组合物以及在治疗中的用途。
Photocatalytic α‐Tertiary Amine Synthesis via C−H Alkylation of Unmasked Primary Amines
作者:Alison S. H. Ryder、William B. Cunningham、George Ballantyne、Tom Mules、Anna G. Kinsella、Jacob Turner‐Dore、Catherine M. Alder、Lee J. Edwards、Blandine S. J. McKay、Matthew N. Grayson、Alexander J. Cresswell
DOI:10.1002/anie.202005294
日期:2020.8.24
transfer (HAT) catalyst, provides a directsynthesis of α‐tertiary amines, or their corresponding γ‐lactams. We anticipate that this methodology will inspire new retrosynthetic disconnections for substituted amine derivatives in organicsynthesis, and particularly for challenging α‐tertiary primaryamines.
Cu(acac)2 Immobilized in Ionic Liquids: A Recoverable and Reusable Catalytic System for Aza-Michael Reactions
作者:M. Lakshmi Kantam、V. Neeraja、B. Kavita、B. Neelima、Mihir K. Chaudhuri、Sahid Hussain
DOI:10.1002/adsc.200404361
日期:2005.5
Copper(II) acetylacetonate immobilized in ionicliquids efficiently catalyzes the aza-Michaelreaction of amines with α,β-unsaturated carbonyl compounds to produce the corresponding β-amino carbonyl compounds with great alacrity in excellent yields. The reactions are far more facile than those reported earlier. The recoveredionicliquid phase containing the copper catalyst can be reused for several cycles
Promiscuous Candida antarctica lipase B-catalyzed synthesis of β-amino esters via aza-Michael addition of amines to acrylates
作者:Kishor P. Dhake、Pawan J. Tambade、Rekha S. Singhal、Bhalchandra M. Bhanage
DOI:10.1016/j.tetlet.2010.06.089
日期:2010.8
has been developed. The reaction is applicable to a wide variety of primary and secondary amines with different acrylates to synthesize the corresponding β-aminoesters with good yields. An alternative route for the synthesis of higher β-aminoesters through the additional transesterification step is also studied and was found effective.