4696-30-4

Basic information

• Product Name: 4-methoxybut-1-ene
• Synonyms: 1-Butene, 4-methoxy; 1-butene, 4-methoxy-; 4-Methoxybut-1-ene; But-3-en-1-yl methyl ether
• CAS NO: 4696-30-4
• Molecular Formula: C₅H₁₀O
• Molecular Weight: 86.1323
• Mol File: 4696-30-4.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 71.3°C at 760 mmHg
• Density: 0.765g/cm³
• Vapor Pressure: 135mmHg at 25°C
• Refractive Index: 1.39
• CAS DataBase Reference: 4-methoxybut-1-ene(CAS DataBase Reference)
• NIST Chemistry Reference: 4-methoxybut-1-ene(4696-30-4)
• EPA Substance Registry System: 4-methoxybut-1-ene(4696-30-4)

Safety Data

• Hazardous Substances Data: 4696-30-4(Hazardous Substances Data)

Upstream product

• 17913-18-7 4-(methoxy)-1-chlorobutane 
• 67-56-1 methanol 
• 98385-95-6 N-(4-Methoxybutyl)-N-nitrosoharnstoff 
• 58390-09-3 (4-Hydroxy-butyl)-trimethyl-ammonium; hydroxide 
• 2167-39-7 (+/-)-2-methyloxetane 
• 186581-53-3 diazomethane 

Downstream Products

• 99165-39-6 1-(4-Chloro-benzyl)-1-(4-methoxy-butyl)-silinane 
• 99165-38-5 1-(4-Methoxy-butyl)-1-octyl-silinane 
• 99165-28-3 1-Chloro-1-(4-methoxy-butyl)-silolane 
• 29512-02-5 1-methoxy-1-butene 
• 41223-27-2 propylene glycol methyl ether 
• 111-32-0 4-methoxybutanol 
• 628-28-4 butyl methyl ether 
• 99165-29-4 1-Chloro-1-(4-methoxy-butyl)-silinane 
• 66688-06-0 2-Cyclopropylethyl-methylether 

Relevant articles and documents

The Elimination Kinetics of Methoxyalkyl Chlorides in the Gas Phase. Evidence for Neighboring Group Participation

The rates of elimination of 3-methoxy-1-chloropropane and 4-methoxy-1-chlorobutane have been determined in a seasoned, static reaction vessel over the temperature range of 410-490 deg C and the pressure range of 56-181 torr.The reactions are homogeneous and unimolecular, follow a first-order rate low, and are invariant to the presence of a twofold or greater excess of the radical chain inhibitor toluene.The overall rate coefficients are given by the following Arrhenius equations: for 3-methoxy-1-chloropropane, logk1(s-1)=(12.92+/-0.48)-(226.0+/-6.8) kJ mol-1(2.303RT)-1; for 4-methoxy-1-chlorobutane, logk1(s-1)=(12. 9+/-0.26)-(218.1+/-3.5) kJ mol-1(2.303RT)-1.The CH3O group in 4-methoxy-1-chlorobutane has been found to assist anchimerically the elimination reaction, where dehydrochlorination and tetrahydrofuran formation arise from an intimate ion pair type of mechanism.The partial rates for these parallel eliminations have been determined and reported.Participation of the CH3O in 3-methoxy-1-chloropropane is barely detected.The present results give further evidence of intimate ion pair mechanism through neighboring group perticipation in the gas-phase elimination of certain types of organic molecules.

OXYGEN YLIDES-II. PHOTOCHEMICAL AND RHODIUM-CATALYZED REACTIONS OF DIAZOMETHANE WITH (S)-2-METHYLOXETANE

Photolysis of diazomethane in (S)-2-methyloxetane gives 2- and 3-methyltetrahydrofuran (1:3.2), the latter being formed with 21 percent net retention of configuration.In contrast, rhodium acetate catalysis yields racemic 3-methyltetrahydrofuran exclusively.