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30 đề thi học sinh giỏi môn hóa học lớp 10 & 11 của các trường chuyên khu vực duyên hải đồng bằng bắc bộ có đáp án

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CH 2 C CH 2<br />

CN<br />

t<br />

CH 2<br />

CN<br />

A<br />

1. KOH,t<br />

O<br />

O<br />

1. SOCl 2<br />

2. NaN t 0 t- BuOH<br />

3<br />

N 2<br />

chuyen vi<br />

C<br />

NCO<br />

O N 3<br />

OH<br />

CH 2<br />

2. H 3 O + COOH B<br />

O<br />

OSO 2 CH 3<br />

NH<br />

O<br />

OsO 4<br />

NaIO 4<br />

OC(CH 3 ) 3<br />

C<br />

O<br />

COOH<br />

CH 3 SO 2 Cl<br />

NaBH 4<br />

NH<br />

O<br />

OC(CH 3 ) 3<br />

E<br />

(C 2 H 5 ) 3 N<br />

NH<br />

O<br />

OC(CH 3 ) 3<br />

G<br />

OH<br />

OSO 2 CH 3<br />

CH 3 SO 2 Cl<br />

NH<br />

OC(CH 3 ) 3<br />

(C 2 H 5 ) 3 N<br />

NH<br />

OC(CH 3 ) 3<br />

O<br />

F<br />

O<br />

H<br />

N 3<br />

NH 2<br />

NaN3<br />

NaN3<br />

NH<br />

N 3<br />

NH<br />

O<br />

O<br />

OC(CH 3 ) 3<br />

NH 2<br />

I<br />

NH 2<br />

1. H 2 ,Pd/C<br />

2. CF 3 COOH<br />

OC(CH 3 ) 3 3.NaHCO NH 3 2<br />

K<br />

1. H 2 ,Pd/C<br />

2. CF 3 COOH<br />

3.NaHCO 3<br />

L<br />

M

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