Which alkynyl halide will most rapidly give a substitution product at C1 upon reaction with a nucleophile like NaSPh assuming that the mechanism is a rate-determining addition followed by an elimination? A. 1-iodobutyne B. 1-fluorobutyne C. 1-bromobutyne D. 1-chlorobutyne

Which alkynyl halide will most rapidly give a substitution product at C1 upon reaction with a nucleophile like NaSPh assuming that the mechanism is a rate-determining addition followed by an elimination? A. 1-iodobutyne B. 1-fluorobutyne C. 1-bromobutyne D. 1-chlorobutyne

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter13: Substitution

Section: Chapter Questions

Problem 13E

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Question

Which alkynyl halide will most rapidly give a substitution product at C1 upon reaction with a nucleophile like NaSPh assuming that the mechanism is a rate-determining addition followed by an elimination?

A.

1-iodobutyne

B.

1-fluorobutyne

C.

1-bromobutyne

D.

1-chlorobutyne

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