heterocycles 3
Post on 27-Jun-2015
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NH2PhPh Phi, NaNO2/ HCl
ii, NaN3
O
H3C H
NO
H3C
CH3
i, Cl2ii, Et3N
iii.
N
H3C H
OH
NO2
Ph
excess PhNCO
NO
Et
O
CH2Ph
N
Et H
OH
heat
i, NaOCl
ii, Et3N
CH3
NH2
i, NaNO2/HCl
ii, NaN3
O OO
CN
HNNH
Ph CO2Et
EtO2C
O
i, POCl3 ii, Et3N
O
1
2
3
4
5
6
IDENTIFY THE MISSING DIPOLES, DIPOLAROPHILES AND CYCLOADDUCTS
O
Me H
CHO
tBuNHOH
PhNHOH
ON
PhCH2 OCO2Me
OMe
OMe
N
O
H
HCl
H
H
(exo)
(exo)
7
8
9
10
11
12
N
EtO2C H
OHi, NCS
ii, Et3N
O
O
Ph
NNH
Ph
H
heat
NHOH
IDENTIFY THE MISSING DIPOLES, DIPOLAROPHILES AND CYCLOADDUCTS
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