57070-49-2

Basic information

• Product Name: 4-tert-butyl-1-methyl-1,2,3,6-tetrahydropyridine
• Synonyms: pyridine, 4-(1,1-dimethylethyl)-1,2,3,6-tetrahydro-1-methyl-
• CAS NO: 57070-49-2
• Molecular Formula: C₁₀H₁₉N
• Molecular Weight: 153.2646
• Mol File: 57070-49-2.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 192.6°C at 760 mmHg
• Flash Point: 62.7°C
• Density: 0.875g/cm³
• Vapor Pressure: 0.486mmHg at 25°C
• Refractive Index: 1.473
• CAS DataBase Reference: 4-tert-butyl-1-methyl-1,2,3,6-tetrahydropyridine(CAS DataBase Reference)
• NIST Chemistry Reference: 4-tert-butyl-1-methyl-1,2,3,6-tetrahydropyridine(57070-49-2)
• EPA Substance Registry System: 4-tert-butyl-1-methyl-1,2,3,6-tetrahydropyridine(57070-49-2)

Safety Data

• Hazardous Substances Data: 57070-49-2(Hazardous Substances Data)

Upstream product

• 64326-91-6 4-(1,1-dimethylethyl)-1-methylpyridinium iodide 

Downstream Products

• 79856-37-4 1-methyl-1-phenacyl-4-t-butyl-1,2,5,6-tetrahydropyridinium bromide 
• 50742-80-8 cis-2-benzoyl-1-methyl-3-t-butyl-3-vinylpyrrolidine 
• 50742-72-8 benzoyl-(1-methyl-4-t-butyl-1,2,5,6-tetrahydropyridinio)methanide 

Relevant articles and documents

Base Catalysed Rearrangements Involving Ylide Intermediates. Part 9. The Rearrangement Reactions of Cyclic Allylic Ammonium and Sulphonium Ylides

The allylic ammonium ylides (22) and (47) and sulphonium ylide (53) are isolable, usually as crystalline solids, because their sigmatropic rearrangements are inhibited by the strain associated with the bicyclic transition state of a concerted reaction mechanism.The tetrahydropyridinium (22) and dihydrothiopyranium (29) ylides undergo a thermal rearrangement, but the pyrrolinium ylide (47) rearranges by a , rather than a , sigmatropic pathway.The dihydrothiophenium ylide (53) does not undergo either a or sigmatropic rearrangement but instead reacts in a bimolecular fashion to give eventually buta-1,3-diene, 2,5-dihydrothiophen, and the heterocycle (55).The rearrangements of the ylides (22) and (29) follow predominantly an endo-pathway leading to a single diastereomer of the products (23) and (31); this strong endo preference is not shown by analogous acyclic ammonium ylides.