694-05-3

Basic information

• Product Name: 1,2,3,6-TETRAHYDROPYRIDINE
• Synonyms: delta3-Piperidine;Pyridine, 1,2,3,6-tetrahydro-;Pyridine, 1,2,5,6-tetrahydro-;1,2,3,6-Tetrahydropyridine 97%;1,2,3,6-Tetrahydropyridine,98%;3,6-Dihydro-2H-pyridine;3-piperideine;1,2,5,6 TETRAHYDROPYRIDINE
• CAS NO: 694-05-3
• Molecular Formula: C₅H₉N
• Molecular Weight: 83.13
• EINECS: 211-766-2
• Product Categories: Pyridines;Heterocyclic Compounds;C5;Heterocyclic Building Blocks
• Mol File: 694-05-3.mol
• Article Data: 6

Chemical Properties

• Melting Point: −48 °C(lit.)
• Boiling Point: 108 °C(lit.)
• Flash Point: 61 °F
• Appearance: White to pale yellow-cream/Powder
• Density: 0.911 g/mL at 25 °C(lit.)
• Vapor Pressure: 23.3mmHg at 25°C
• Refractive Index: n20/D 1.48(lit.)
• PKA: 10.22±0.10(Predicted)
• CAS DataBase Reference: 1,2,3,6-TETRAHYDROPYRIDINE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2,3,6-TETRAHYDROPYRIDINE(694-05-3)
• EPA Substance Registry System: 1,2,3,6-TETRAHYDROPYRIDINE(694-05-3)

Safety Data

• Hazard Codes: F,Xi
• Statements: 11-36/37/38
• Safety Statements: 16-26-36/37/39
• RIDADR: UN 2410 3/PG 2
• WGK Germany: 3
• HazardClass: 3.1
• PackingGroup: II
• Hazardous Substances Data: 694-05-3(Hazardous Substances Data)

Usage

Chemical Properties

Clear colorless to pale yellow liquid

Uses

Used to form ene-endo-spirocyclic ammonium ylids for [2,3]-sigmatropic rearrangement to pyrroloazepinones and oxazepinones.

General Description

A colorless liquid. Density 0.913 g / cm3 and insoluble in water. Hence floats on water. Flash point near 110°F. Vapors heavier than air. Used to make other chemicals.

Air & Water Reactions

Flammable. Insoluble in water.

Reactivity Profile

1,2,3,6-TETRAHYDROPYRIDINE neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.

Health Hazard

May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

Fire Hazard

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

InChI:InChI=1/C5H9N/c1-2-4-6-5-3-1/h1-2,6H,3-5H2

Upstream product

• 462-08-8 pyridin-3-ylamine 
• 110-86-1 pyridine 
• 7664-93-9 sulfuric acid 
• 7732-18-5 water 
• 100-39-0 benzyl bromide 
• 2589-31-3 N-benzylpyridinium bromide 
• 52003-32-4 ethyl 1,2,3,6-tetrahydropyridine-1-carboxylate 
• 40240-12-8 1-benzyl-1,2,3,6-tetrahydropyridine 
• 92885-06-8 N-chloro-1,2,5,6-tetrahydropyridine 
• 85839-08-3 1-cyano-1,2,3,6-tetrahydropyridine 
• 694-55-3 N-methyl-3,4-didehydropiperidine 
• 2876-13-3 N-benzylpyridinium chloride 

Downstream Products

• 106320-87-0 1-(2-chloro-phenoxy)-3-(3,6-dihydro-2H-[1]pyridyl)-propan-2-ol 
• 100718-11-4 (3,6-dihydro-2H-[1]pyridyl)-phenyl-acetic acid methyl ester 
• 101255-85-0 1-[2-(2-o-tolyloxy-ethoxy)-ethyl]-1,2,3,6-tetrahydro-pyridine 
• 18513-75-2 1-(1,2,3,6-tetrahydropyridin-1-yl)ethan-1-one 
• 71785-91-6 (5,6-dihydropyridin-1(2H)-yl)(phenyl)methanone 
• 109816-13-9 (3,6-dihydro-2H-[1]pyridyl)-acetic acid-(2,6-dimethyl-anilide) 
• 108897-99-0 1-(3,6-dihydro-2H-[1]pyridyl)-3-(2-methoxy-4-propenyl-phenoxy)-propan-2-ol 
• 101864-95-3 1-(4-allyl-2-methoxy-phenoxy)-3-(3,6-dihydro-2H-[1]pyridyl)-propan-2-ol 
• 37088-07-6 trans-3,4-dihydroxypiperidine 
• 87682-63-1 1-phenyl-1,2,5,6-tetrahydropyridine 
• 6972-40-3 1-ethyl-1,2,5,6-tetrahydropyridine 
• 102706-72-9 2-ethyl-2-phenyl-butyric acid-{2-[2-(3,6-dihydro-2H-[1]pyridyl)-ethoxy]-ethyl ester} 
• 111438-68-7 (3,6-dihydro-2H-[1]pyridyl)-phenyl-acetic acid-[2-(2-piperidino-ethoxy)-ethyl ester] 
• 102707-31-3 (3,6-dihydro-2H-[1]pyridyl)-phenyl-acetic acid-[2-(2-diethylamino-ethoxy)-ethyl ester] 

Relevant articles and documents

-

-

Synthesis and antibacterial activity of novel fluoroquinolones containing substituted piperidines

The design and synthesis of new fluoroquinolone antibacterial agents having substituted piperidine rings at the C-7 position are described. Most of the new compounds demonstrated high in vitro antibacterial activity. Several of them exhibited significant activities against Gram-positive organisms, which were more potent than those of gemifloxacin, Linezolid, and vancomycin.

Substituted tetrahydropyridine derivatives acting on 5-HT receptors

PCT No. PCT/GB96/02763 Sec. 371 Date Apr. 29, 1998 Sec. 102(e) Date Apr. 29, 1998 PCT Filed Nov. 13, 1996 PCT Pub. No. WO97/18204 PCT Pub. Date May 22, 1997Compounds having formula I, or salts or prodrugs thereof: are selective agonists of the 5-HT1D alpha receptor and are useful in the treatment of migraine and associated conditions.