Methyl propyl ether

Cyclohexane 60 QHij Methyl propyl ether 103 C4Hi 0... 

Methyl -propyl ether [557-17-5] M 74.1, b 39", d 0.736, n " 1.3602, pK -3.79 (aq H2SO4). Dried with CaS04, then passed through a column of alumina (to remove peroxides) and fractionally distd. 

Ether carbon atoms also exhibit a downfield shift in the 13C NMR spectrum, where they usually absorb in the 50 to 80 5 range. For example, the carbon atoms next to oxygen in methyl propyl ether absorb at 58.5 and 74.8 8. Similarly, the methyl carbon in anisole absorbs at 54.8 8. 

C Nuclear magnetic resonance spectrum, acetaldehyde, 732 acetophenone, 732 anisole, 672 benzaldehyde, 732 benzoic acid, 771 p-bromoacetophenone, 449 2-butanone, 449, 732 crotonic acid. 771 cyclohexanol, 634 cyclohexanone, 732 ethyl benzoate, 477 methyl acetate, 443 methyl propanoate, 450 methyl propyl ether, 672... 

Which of the following best explains why 1-butanol, CH3CH2CH2CH2OH, has a higher boiling point (117°C) than its isomer, methyl propyl ether, CH3OCH2CH2CH3 (39°C) ... 

Tmethoxypropane (common name methyl propyl ether)... 

Example The 70 eV El mass spectra of methyl propyl ether and diethyl ether are shown below (Fig. 6.7). Although being isomers, their spectra are clearly different. In case of methyl propyl ether, a-cleavage can occur by H loss, m/z 73, and definitely preferable by C2H5" loss, m/z 45, which gives rise to the base peak. The advantage of C2H5 loss over CH3 loss becomes evident from the diethyl... 

C4H100 METHYL-PROPYL-ETHER 8.013E-04 476.20 -0.7143 156.87 452.39 1.618E-03 0.723... 

Methyl propyl ether 0 FALSE FALSE EALSE FALSE... 

Addition of alcohol to alkenes hy alkoxymercuration-reduction produces ethers via Markovnikov addition. This addition is similar to the acid-catalysed addition of an alcohol. For example, propene reacts with mercuric acetate in aqueous THF, followed hy reduction with NaBFl4, to yield methyl propyl ether. The second step is known as demercuration, where Flg(OAc) is removed hy NaBH4. Therefore, this reaction is also called alkoxymercura-tion-demercuration. The reaction mechanism is exactly the same as the oxymercuration-reduction of alkenes. 

The constant for the decomposition of gaseous propionic aldehyde falls away steadily below about 80 mm., that for the decomposition of diethyl ether below about 150 mm., that for the decomposition of diethyl ether below about 300 mm. Several other ethers, dipropyl ether, methyl propyl ether and methyl ethyl ether behave in a similar manner. The velocity constant for the decomposition of azomethane also diminishes but not until lower pressures are reached for example at 290° C. k at 0-259 mm. has one-fourth of its value at 707-9 mm. In several reactions, such as the racemization of pinene, and the decomposition of gaseous acetone the falling off of the velocity constant has not actually been looked for. The decomposition of azoisopropane is unimolecular down to pressures of 0-25 mm. 

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