22950-23-8Relevant academic research and scientific papers
Direct palladium(0)-catalyzed amination of allylic alcohols with aminonaphthalenes
Shue, Yi-Jen,Yang, Shyh-Chyun,Lai, Hwe-Chen
, p. 1481 - 1485 (2003)
The direct activation of C-O bonds in allylic alcohols by palladium complexes has been accelerated by carrying out the reactions in the presence of titanium reagents. The palladium-catalyzed amination of allylic alcohols using aminonaphthalenes gave N-all
Synthesis of novel [3,1]-benzothiazepine and [3,1]-benzoxazepine derivatives with antitumoral activity
Martinez, Walter R.,Militao, Gardenia C. G.,Da Silva, Teresinha G.,Silva, Ricardo O.,Menezes, Paulo H.
, p. 14715 - 14718 (2014/04/17)
A new method for the synthesis of [3,1]-benzothiazepines and [3,1]-benzoxazepines from the reaction of C-allylanilines and isothiocyanates or isocyanates without the need for the isolation of any intermediate is described. The compounds were obtained in good to moderate yields and some exhibited cytotoxic activity against tumor cell lines. This journal is the Partner Organisations 2014.
PEG-4000-promoted palladium-catalyzed N-allylation in water: Aminonaphthalene as an example
Shih, Chun-Jen,Shue, Yi-Jen,Yang, Shiang-Yu,Yang, Shyh-Chyun
, p. 550 - 555 (2012/11/07)
An environmentally friendly, efficient catalytic process using palladium associated with ligands in a PEG4000-water system leading to N-allylation was described in this study. PEG-4000 was found to improve the palladium-catalyzed allylic amination of allylic acetates with aminonaphthalenes and gave overall good to high yields of the corresponding N-allylic aminonaphthalenes. Copyright
Sequential combination of ruthenium-, base-, and gold-catalysis - A new approach to the synthesis of medicinally important heterocycles
Ramachary, Dhevalapally B.,Narayana, Vidadala V.
supporting information; experimental part, p. 3514 - 3522 (2011/08/06)
A general approach to the high-yielding synthesis of medicinally important heterocycles was achieved through the sequential combination of ring-closing metathesis, base-induced ring opening (BIRO), hydroamination, and a Diels-Alder reaction of functionalized allyl-(2-allylphenyl)amines in the presence of a catalytic amount of Grubbs' second-generation catalyst, base (tBuOK), and [AuCl(PPh3)]/AgOTf. Herein, we also demonstrate the important electronic factors in the BIRO of N-substituted-benzo[b]azepines for the regioselective synthesis of functionalized (Z)-N-substituted-2-(buta-1,3-dienyl) phenylamines in very good yields with high purity; these are very good, useful compounds in medicinal chemistry. We also discovered the selective cascade synthesis of privileged hexahydrophenanthridines from (Z)-N-substituted-2-(buta- 1,3-dienyl)phenylamines by gold catalysis in moderate to good yields with >99 % diastereomeric excess. The possible reaction mechanism for the unusual hydroamination followed by [4+2] cycloaddition of functionalized (Z)-N-substituted-2-(buta-1,3-dienyl)phenylamines through gold catalysis is discussed in this work. A novel process for the synthesis of highly substituted, medicinally important heterocycles was achieved through the sequential combination of ring-closing methathesis, base-induced ring opening, hydroamination, and Diels-Alder reaction of functionalized allyl-(2-allylphenyl) amines in the presence of a catalytic amount of [Ru], base, and [Au] (see scheme). Copyright
Synthesis of azepine- and azocine-annulated heterocycles by aromatic aza-Claisen rearrangement and ring-closing metathesis
Majumdar,Samanta, Srikanta,Chattopadhyay, Buddhadeb,Nandi, Raj Kumar
experimental part, p. 863 - 869 (2010/09/18)
Syntheses of hitherto unreported azepine- and azocine-annulated heterocycles have been developed in excellent yields via a catalyzed aromatic aza-Claisen rearrangement followed by ring-closing metathesis using Grubbs first-generation catalyst. Georg Thiem
Platinum-catalyzed allylation of aminonaphthalenes with allylic acetates in water
Gan, Kim-Hong,Jhong, Ciou-Jyu,Shue, Yi-Jen,Yang, Shyh-Chyun
, p. 9625 - 9629 (2008/12/22)
The activation of C-O bonds in allylic acetates in water as a suspension medium has been accelerated by carrying out the reactions in the presence of platinum complexes associated with ligands. The platinum-catalyzed allylation of aminonaphthalenes using allylic acetates gave the corresponding N-allylic aminonaphthalenes in good yields.
An improved method of synthesis of precursors for amino-Claisen rearrangement
Jain, Seema,Pandey, Neelesh,Kishore
, p. 1052 - 1054 (2007/10/03)
N-Allylarylamines are useful precursors in amino-Claisen rearrangements affording 2-allylarylamines in one step. An improved method for the synthesis of a series of N-allylarylamines (2a-h) has been described.
Platinum-catalyzed allylation of aminonaphthalenes with allylic acetates
Yang, Shyh-Chyun,Feng, Wei-Hao,Gan, Kim-Hong
, p. 3752 - 3760 (2007/10/03)
The activation of C-O bonds in allylic acetates has been accelerated by carrying out the reactions in the presence of platinum complexes associated with ligands. Platinum-catalyzed allylation of aminonaphthalenes with allylic acetates leads to N-allylic aminonaphthalenes in good yields.
Thermal cyclization of N-[2-(2-propenyl)-1-naphthyl] ketenimines: Intramolecular Diels-Alder reaction versus [1,5] hydrogen migration. Synthesis of dibenz[b,h]acridines and benzo[h]quinolines
Alajarín, Mateo,Vidal, ángel,Ortín, María-Mar
, p. 7613 - 7621 (2007/10/03)
The thermal treatment of N-(2-propenyl)-1-naphthylamines provided the expected aza-Claisen rearranged products, 2-(2-propenyl)-1-naphthylamines and benz[g]indoles, these last derived from an intramolecular hydroamination reaction on those primary products. The 2-(2-propenyl)-1-naphthylamines were converted into their triphenylphosphazene derivatives, which by aza-Wittig reaction with disubstituted ketenes yielded N-[2-(2-propenyl)-1-naphthyl] ketenimines. The heating of these ketenimines in boiling toluene induced their cyclization either via an intramolecular Diels-Alder reaction, to afford dibenz[b,h]acridines, or via [1,5] hydrogen migration from the sp3 carbon atom of the propenyl substituent to the central carbon atom of the ketenimine fragment, followed by a 6π electrocyclic ring closure, to give benzo[h]quinolines.
Thermal Rearrangement of N-(Substituted allyl)-1-naphthylamines
Inada, Seisaku,Kurata, Ryu-ichiro
, p. 1581 - 1582 (2007/10/02)
The title reaction was examined and the results were compared with those of the thermal reaction of the corresponding N-tosyl derivatives.
