{44}

CH3-CH2-O-CH2-CH3

(I)

CH3-O-CH2-CH2-CH3

(II)

CH3-O-CH-CH3

(III)CH3

{45}

R1-O-Na+ + X-R2

(I) (II)-NaX

R1-O-R2

(III)

{46}

CH3-CH2-OH

(I)

+HO-SO3H(k)

-H2OCH3-CH2-O-SO3H

(II)

+CH3-CH2-OH

-H2SO4CH3-CH2-O-CH2-CH3

(III)

-H2SO4

CH2=CH2

(IV)

{47}

2 CH3-CH2OH

(I)

300°C / Al2O3

-H2OCH3-CH2-O-CH2-CH3

(II)

{48}

RO

R+ HY R

O-HR

Y

(I)

{49}

CH3-CH2-O-CH2-CH3

(I)

O

O

(II)

O

O

(III)