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Organic Reactions Volume 4 - Sciencemadness Dot Org

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PREPARATION OF AMINES BY REDUCTIVE ALKYLATION 203<br />

TABLE II<br />

PREPARATION OF BENZYLAMINE<br />

Method<br />

Reductive alkylation of ammonia with benzaldehyde<br />

Reduction of benzaldoxime with aluminum amalgam<br />

Reduction of benzaldoxime with hydrogen and palladium<br />

Reduction of benzaldoxime with zinc and acetic acid<br />

Reduction of benzaldoxime with hydrogen and nickel<br />

Reduction of benzaldoxime acetate with hydrogen<br />

and palladium<br />

Reduction of benzaldoxime with hydrogen and nickel<br />

on kieselguhr<br />

Reduction of benzaldoxime with hydrogen and Raney<br />

nickel<br />

Reduction of benzaldazine with hydrogen and nickel<br />

on kieselguhr<br />

Treatment of benzylmagnesium chloride with chloramine<br />

Treatment of benzylmagnesium chloride with hydroxylamine<br />

O-benzyl ether<br />

Treatment of benzyl chloride with sodium iodide and<br />

hexamethylenctetramine<br />

Curtius degradation of phenylacetic acid<br />

Gabriel synthesis<br />

Treatment of benzyl chloride with liquid ammonia<br />

Electrolytic reduction of the imino ether hydrochloride<br />

Electrolytic reduction of benzamide<br />

Electrolytic reduction of benzaldehyde phenyl hydrazone<br />

Reduction of benzonitrile with hydrogen and palladium<br />

in acetic acid<br />

Reduction of benzonitrile with hydrogen and nickel<br />

Reduction of benzonitrile with hydrogen and platinum<br />

in the presence of acetic anhydride<br />

* References 92-107 are listed on p. 254.<br />

f There is also formed 23% of benzyl alcohol.<br />

Benzylamine<br />

%<br />

89<br />

88<br />

Almost<br />

quant.<br />

94<br />

90<br />

91<br />

77<br />

73<br />

68<br />

92<br />

79<br />

82.5<br />

92<br />

90<br />

53<br />

76<br />

74<br />

43<br />

80<br />

72<br />

69<br />

Yield<br />

Dibenzylamine<br />

%<br />

7<br />

—<br />

—<br />

—<br />

—<br />

__<br />

19<br />

20<br />

26<br />

—<br />

—<br />

—<br />

—<br />

—<br />

39<br />

—<br />

_<br />

12 f<br />

—<br />

5<br />

~ I<br />

Ref.*<br />

10<br />

92<br />

93<br />

94<br />

95<br />

96<br />

4<br />

4<br />

4<br />

97<br />

98<br />

99<br />

100<br />

101<br />

102<br />

103<br />

104<br />

105<br />

96<br />

106<br />

107

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