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[PDF] Top 20 Synthesis of nitrogen heterocycles via amidyl radical cyclisations

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Synthesis of nitrogen heterocycles via amidyl radical cyclisations

Synthesis of nitrogen heterocycles via amidyl radical cyclisations

... P-lactam synthesis was possible without the necessity of designing in a second irreversible cyclisation we decided to change the A-allyl group for a number of other R groups to determine how this might affect the ... See full document

257

Synthesis of nitrogen heterocycles

Synthesis of nitrogen heterocycles

... The process of claim 1 wherein said nitrogen het erocycles are selected from the group consisting of generally it is a C3 to C20 alkene moiety with a nitrogen indoles, indolines, oxindol[r] ... See full document

7

SYNTHESIS AND BIOLOGICAL ACTIVITY OF NOVEL PYRROLO BENZODIAZEPINE HYBRIDS AND COMBINATORIAL SYNTHESIS OF BIOLOGICALLY ACTIVE NITROGEN HETEROCYCLES

SYNTHESIS AND BIOLOGICAL ACTIVITY OF NOVEL PYRROLO BENZODIAZEPINE HYBRIDS AND COMBINATORIAL SYNTHESIS OF BIOLOGICALLY ACTIVE NITROGEN HETEROCYCLES

... the synthesis of biologically important compounds employing polymer-supported ...the synthesis of pyrrolo[2,1-b]quinazolinones and related analogues including vasicinone employing polymer-supported reagents ... See full document

24

2-Iodoisatogens: Versatile Intermediates for the Synthesis of Nitrogen Heterocycles

2-Iodoisatogens: Versatile Intermediates for the Synthesis of Nitrogen Heterocycles

... Söderberg and co-workers recently highlighted that 2- nitrophenyl haloacetylenes form isatins under Pd-catalysis. However, only in two cases, the corresponding 2- bromoisatogen could be isolated in high yield (Scheme 1). ... See full document

5

Synthesis and evaluation of some nitrogen heterocycles as antimalarials

Synthesis and evaluation of some nitrogen heterocycles as antimalarials

... N - [ 6 - ( 7 ,-Trifluoromethylquinolin-4’-yl)hex-5-en-l-yl]phthalimide (VII.38) 4-Bromo-7-trifluoromethylquinoline (2.3 g), A-(hex-5-en-l-yl)phthalimide (2.1 g), palladium acetate (0.020 g), tri-o-tolylphosphine (0.053 ... See full document

258

Synthesis and biological activity of nitrogen heterocycles from anthranilic acid derivative

Synthesis and biological activity of nitrogen heterocycles from anthranilic acid derivative

... On the other hand, when 4- chloroquinazoline (9) was allowed to react with piperdine to give 2-phenyl-4-piperidino-6,8- dibromoquinazoline (12). Reaction of chloroquinazoline (9) was allowed to react with piperdine to ... See full document

8

A radical approach to nitrogen heterocycles

A radical approach to nitrogen heterocycles

... metal-catalysed radical cyclisations have received considerable attention in organic ...the cyclisations of allyl trichloroacetate by copper catalysts have been reported by Nagashima and ... See full document

265

New approaches to nitrogen heterocycles via radical cyclisations

New approaches to nitrogen heterocycles via radical cyclisations

... the synthesis of a number of natural products 24–27 there are certain disadvantages that limit the usefulness of the ...cyclised radical with a hydrogen atom results in the loss of two functional groups in ... See full document

293

Synthesis of nitrogen containing heterocycles via radical cyclisation

Synthesis of nitrogen containing heterocycles via radical cyclisation

... f amidyl radicals had recently been ...as radical precursors had been reported by Newcomb'3’, while the use o f 0-benzoyl hydroxamic acid derivatives had been explored by ...that amidyl radicals can ... See full document

278

Kinetic and NMR studies of some nitrogen heterocycles

Kinetic and NMR studies of some nitrogen heterocycles

... ring nitrogen present in imidazole having little effect except to reduce the susceptibility of the ring to electrophilic ...proceeds via an anionic ...reaction via the imidazole ... See full document

181

Palladium Catalyzed Aerobic Oxidative Cyclization of ortho Vinylanilines with Isocyanides

Palladium Catalyzed Aerobic Oxidative Cyclization of ortho Vinylanilines with Isocyanides

... the synthesis of 2-aminoquinolines has been developed. Typical synthesis of 2-aminoquinolines that utilize ortho-amino- or nitro-benzaldehyde derivatives and quinoline derivatives requires either more than ... See full document

11

Stierstorfer, Jörg
  

(2009):


	Advanced Energetic Materials Based on 5-Aminotetrazole: Synthesis, Characterization, Testing and Scale-up.


Dissertation, LMU München: Fakultät für Chemie und Pharmazie

Stierstorfer, Jörg (2009): Advanced Energetic Materials Based on 5-Aminotetrazole: Synthesis, Characterization, Testing and Scale-up. Dissertation, LMU München: Fakultät für Chemie und Pharmazie

... I would like to thank the whole group of Prof. Klapötke for the warm atmosphere and their support. With this, a few persons are worth to mention. Michael Göbel, I want to thank you for being a good friend and colleague, ... See full document

694

Polyethylene glycol embedded tribromide as an efficient and reusable catalyst for the library synthesis of nitrogen containing heterocycles

Polyethylene glycol embedded tribromide as an efficient and reusable catalyst for the library synthesis of nitrogen containing heterocycles

... A mixture containing desired substrates as mentioned in Table 1 and catalyst 1 (10 mol%, 0.1 mmol) was stirred at room temperature under a nitrogen atmosphere. The reaction was monitored by TLC. At the end of the ... See full document

12

Palladium/Imadazolium Salt Mediated Cyclisations for the Synthesis of Heterocyclic Compounds

Palladium/Imadazolium Salt Mediated Cyclisations for the Synthesis of Heterocyclic Compounds

... Palladium mediated reactions play significant role in organic synthesis. Intramolecular Heck reactions in partic- ular have become useful for the synthesis of carbocylic and heterocyclic rings [1] [2]. ... See full document

9

A novel approach to steganone analogues via metal-mediated cyclisations

A novel approach to steganone analogues via metal-mediated cyclisations

... secondary alcohol protecting group, oxidation and bromination alpha to the ketone gave cyclisation precursor (36). The cyclisation reaction proceeded with overall formation of the bisbenzocyclooctadiene ring in 54 % ... See full document

259

Synthesis and antibacterial and antifungal studies of novel nitrogen containing heterocycles from 5-Ethylpyridin-2-ethanol

Synthesis and antibacterial and antifungal studies of novel nitrogen containing heterocycles from 5-Ethylpyridin-2-ethanol

... The basic imidazole nucleus, present in azlactone containing oxazolone moiety, is of great importance for generating penicillin type of drug intermediates and synthetic hormonal compounds. Imidazolones or ... See full document

8

Total Synthesis of the Synoxazolidinone Family of Natural Products and Novel Approaches for the Construction of Nitrogen and Oxygen Containing Heterocycles.

Total Synthesis of the Synoxazolidinone Family of Natural Products and Novel Approaches for the Construction of Nitrogen and Oxygen Containing Heterocycles.

... incorporate nitrogen and oxygen-containing heterocycles as their core structural ...successful synthesis of biologically active heterocyclic compounds not only leads to desired scaffolds but also ... See full document

303

Synthesis and Biological Evaluation of N-heterocycles for Activity on Monoamine Transporters and Exploration of Iridium Chemistry for Synthesis of Medicinally Important Molecules

Synthesis and Biological Evaluation of N-heterocycles for Activity on Monoamine Transporters and Exploration of Iridium Chemistry for Synthesis of Medicinally Important Molecules

... The focus of these studies has been toward the development of new synthetic methods and procedures for the synthesis of novel compounds with unique biological properties. This research has led to the development ... See full document

167

SYNTHESIS AND BIOLOGICAL ACTIVITIES OF SOME NEW HETEROCYCLES CONTAINING NITROGEN AND SULPHUR

SYNTHESIS AND BIOLOGICAL ACTIVITIES OF SOME NEW HETEROCYCLES CONTAINING NITROGEN AND SULPHUR

... Some heterocycles are fundamental to life, such as haem derivatives in blood and the chlorophylls are essential for ...are heterocycles, as are the sugars that in combination with phosphates provide the ... See full document

13

Facile synthesis of fused nitrogen containing heterocycles as anticancer agents

Facile synthesis of fused nitrogen containing heterocycles as anticancer agents

... derivatives via simple pyrazole (5-methyl-2,4-dihydro-3H-pyrazol-3-one) as starting ...of Nitrogen containing heterocycles and have evaluated their efficiency as an antihepatocellular ... See full document

18

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