What sort of a rection is the Lucas Test??

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What sort of a rection is the Lucas Test??

Is it Substitution? But what actually happens? Whats the science behind it?

2007-05-13 01:39:18 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

2 answers

Sn1 for the secondary and tertiary alcohols; primary alcohols do not react.

Hydrochloric acid protonates the alcohol, making a water group, which is a much better leaving group than the hydroxy group (zinc chloride acts as a catalyst):

R3C-OH + H+----> R3C-OH2(+) -----> R3C(+) + H2O

The carbocation then reacts with the chloride ion to form the chloroalkane:

R3C(+) + Cl- ---> R3C-Cl

2007-05-13 01:47:45 · answer #1 · answered by TheOnlyBeldin 7 · 1⤊ 0⤋

are you wanting to know the lucas-lehmar test or the lucas alcohol test?

2007-05-13 08:44:35 · answer #2 · answered by MaDMaN 1 · 0⤊ 0⤋