70686-51-0

Upstream product

• 696-59-3 cis,trans-2,5-dimethoxytetrahydrofuran 
• 56-12-2 4-amino-n-butyric acid 
• 96-48-0 4-butanolide 
• 109-97-7 pyrrole 
• 16199-06-7 potassium pyrrolide 
• 34160-24-2 2,5-dimethoxytetrahydrofuran 

Downstream Products

• 90006-82-9 4-(1-pyrrolyl)butanenitrile 
• 54906-44-4 1-Azabicyclo[4.3.0]nona-6,8-diene-5-one 
• 292067-35-7 methyl (+/-)-1-(2-aminophenyl)-8-ethyl-3-formyl-5,6,7,8-tetrahydroindolizin-8-acetate 
• 501909-24-6 2-(8-ethyl-5,6,7,8-tetrahydroindolizin-8-yl)propionitrile 
• 528607-67-2 methyl (+/-)-1-(2-aminophenyl)-8-ethyl-3-formyl-5,6,7,8-tetrahydroindolizin-8-propionate 
• 13618-93-4 indolizidine 
• 1346772-34-6 (2S)-4-(2-[[2-((S)-4-benzyloxycarbonyl-4-(carbazol-9-yl)-butyrylamino)-ethyl]-(4-(pyrrol-1-yl)-butyryl)amino]-ethylcarbamoyl)-2-(carbazol-9-yl)-butyric acid benzyl ester 
• 677005-72-0 (S)-2-(5,6,7,8-tetrahydroindorizine-8-yl)ethan-1-ol 
• 289471-41-6 4-(pyrrol-1-yl)butanal 

Relevant academic research and scientific papers

Synthesis and properties of novel TEMPO-contained polypyrrole derivatives as the cathode material of organic radical battery

Two 2,2,6,6-tetramethylpiperidinyl-N-oxy (TEMPO) contained polypyrrole (PPy) derivatives with the different side-chain length were synthesized by esterification of 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl free radial with pyrrole butyric acid and pyrrole caproic acid. Then the homopolymers of 4-(3-(Pyrrol-1-yl)butyryloxy)-2,2,6,6-tetramethylpiperidin-1-yloxy (PPy-B-TEMPO) and 4-(3-(Pyrrol-1-yl)hexanoyloxy)-2,2,6,6-tetramethylpiperidin-1-yloxy (PPy-C-TEMPO) were prepared by chemical oxidative polymerization. The structure, morphology, electrochemical properties of prepared polymers were characterized by fourier transform infrared spectroscopy (FTIR), ultraviolet visible spectroscopy (UV-vis), scanning electron microscopy (SEM), cyclic voltammograms (CV) and electrochemical impedance spectra (EIS), respectively. Also, the charge-discharge properties of the prepared polymers were studied by galvanostatic charge-discharge testing. The results demonstrated that the as-synthesized nitroxide radical polymers showed a reversible two-electron redox reaction process in the potential limits of 2.5-3.0 V and 3.4-3.8 V vs Li/Li+, respectively. Under our experimental conditions, PPy only presented the discharge capacity of 16.5 mAh·g-1 at 20 mA·g-1 between 2.5 and 4.2 V, while PPy-B-TEMPO with the short side-chain linked to TEMPO groups exhibited an initial discharge capacity of up to 86.5 mAh·g-1 with two well-dened plateaus. Furthermore, the PPy-C-TEMPO with the longer linking side-chain even displayed a discharge capacity of 115 mAh·g-1. These superior electrochemical performances were ascribed to the flexible linking side-chain and the introduction of stable conductive PPy main chain, which benefits the improvement of charge carrier transportation in the aggregated polymer bulk.

Biosynthesis of conjugatable saccharidic moieties of GM2 and GM3 gangliosides by engineered E. coli

Oligosaccharidic moieties of GM2 and GM3 gangliosides bearing an allyl or a propargyl aglycon, are efficiently biosynthesized on the gram scale by growing metabolically engineered Escherichia coli cells in the presence of the corresp

"Growth from surface" Methodology for the Fabrication of Functional Dual Phase Conducting Polymer polypyrrole/polycarbazole/Polythiophene (CP/polyPyr/polyCbz/PolyTh)-Carbon Nanotube (CNT) Composites of Controlled Morphology and Composition - Sidewall versus End-Selective PolyTh Deposition

A “growth from the surface” method for selectively depositing oxidative Liquid Phase Polymerizations (LPPs) onto the carbon nanotube (CNT) surface, said method comprising steps of: a. obtaining Multi-walled Carbon Nanotubes (MWC-NT); b. oxidized said MWCNTs to obtain oxidized COOH-MWCNTs; thereby (a) carboxylative opening oxidation-sensitive end-caps (polyCOOH end cluster); and, (b) introducing defect carboxylic (COOH) groups onto predetermined areas of said oxidized COOH-MWCNTs; c. COOH activating the polyCOOH shell using various COOH activating species; and, d. executing Liquid Phase Polymerization (LPP) oxidative depositing polymers selected from said polyCOOH polyTh-CP polymers, polyCOOH poly-Th-, polyEDOT (PEDOT)-, polyTh polyCOOH poly(thiophenyl-3 acetic acid, thiophenyl-3 acetic acid/EDOT, polyX, wherein X is elected from COOH, OH, NH2, polyCbz/polyPyr CP polymers and related combinatorial mixtures, polyCOOH PEDOT-poly(thiophenyl-3 acetic acid)′ thereby selectively depositing said oxidative LPPs onto said CNT surface.

Towards hybrid carbazole/pyrrole-based carboxylated monomers: Chemical synthesis, characterisation and electro-oxidation properties

Six novel hybrid carbazole (Cbz)-pyrrole (Pyr)-based carboxylated monomers were synthesised and unambiguously characterised using common spectroscopic tools. Clauson-Kaas, amide coupling, LAH (lithium aluminium hydride)-mediated reduction, esterification

Synthesis of 3-aryl-8-oxo-5,6,7,8- tetrahydroindolizines via a palladium-catalyzed arylation and heteroarylation

A selective palladium-catalyzed arylation and heteroarylation of 8-oxo-5,6,7,8-tetrahydroindolizines has been developed. Mechanistic studies assume an electrophilic substitution pathway for this transformation. This method provides an efficient one-step s

Total synthesis of two novel 5,6,7,8-tetrahydroindolizine alkaloids, polygonatines A and B

The structures of polygonatines A and B, two simple but structurally novel alkaloids, have been substantiated by synthesis. Cyclisation of 4-(1H-pyrrol-1-yl)butanoic acid or its ethyl ester produced 6,7- dihydroindolizin-8(5H)-one 10, formylation of which at C-3 followed by reduction afforded polygonatine A 7. Acetylation of this alkaloid followed by displacement of the acetate with ethanol yielded polygonatine B 5, possibly via an azafulvenium cation. The Royal Society of Chemistry 2006.

The influence of chiral auxiliaries and catalysts on the selectivity of intramolecular conjugate additions of pyrrole to N-tethered Michael acceptors

A series of pyrroles incorporating N-tethered acrylates and related groups has been prepared and examined for their capacity to undergo intramolecular Michael addition reactions to form, in a diastereo- or enantio-selective fashion, the corresponding 8-substituted tetrahydroindolizidine or homologues thereof.

Efficient Asymmetric Synthesis of Indolizidine Building Blocks

Intramolecular Friedel-Crafts acylation of a pyrrole derived from L-glutamic acid, followed by a highly selective hydrogenation, leads to either of the optically pure indolizidine alkaloid precursors 6 or 7, depending on the catalyst.

Pyrrole cephalosporin derivatives

New pyrrole derivatives of cephalosporin compounds have been prepared which are useful as antibiotics.