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Grignard Reagents

Compound Cwas...

Question

Compound (C)
was prepared in a three step sequence from ethyl trifluoroacetate.
The first step in a sequence involved treating ethyl trifluoroacetate with NH₃ to give a compound (A), which on heating with (X) gives (B). (B) on treatment with an orangometallic (Y), followed by hydrolysis produces (C) . Based on above passage attempt the following questions:

Structure of (A), would be

A

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B

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C

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D

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Solution

The correct option is B
$C F_{3} C O O C_{2} H_{5} N H_{3} - -- \to C F_{3} C O N H_{2} (A)$

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Q. Compound (C)

was prepared in a three step sequence from ethyl trifluoroacetate.
The first step in a sequence involved treating ethyl trifluoroacetate with NH₃ to give a compound (A), which on heating with (X) gives (B). (B) on treatment with an orangometallic (Y), followed by hydrolysis produces (C) . Based on above passage attempt the following questions:

Structure of (B) , would be

Q. Compound (C)

was prepared in a three step sequence from ethyl trifluoroacetate. The first step in a sequence involved treating ethyl trifluoroacetate with NH₃ to give a compound (A), which on heating with (X) gives (B). (B) on treatment with an orangometallic (Y), followed by hydrolysis produces (C) . Based on above passage attempt the following questions:

(X) , should be

Given compound (A) upon treatment with

K M n O_{4} / H^{+}

gives (B), which on heating with ammonia produces (C). (C) on treatment with

B r_{2} / N a O H

produces (D). Strongly heating (C) produces (E) which on further reatment with ethyl 2-bromoacetate in the presence of

K O H

followed by acidification gives (F).

(F) from the following is:

Q. An organic compound 'A' on treatment with

N H_{3}

gives 'B', which on heating gives 'C'. 'C', when treated with

B r_{2}

in the presence of KOH, produces ethylamine. Compound 'A' is:

Given compound (A) upon treatment with

K M n O_{4} / H^{+}

gives (B), which on heating with ammonia produces (C). (C) on treatment with

B r_{2} / N a O H

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(D) is:

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