which of following is the best reaction sequence to use if one wants to accomplish a Markovnikov addition of water to an alkene with minimal sketetal rearrangement
a) water+dilute acid
b) water+concentrated acid
c) oxymercuration-demercuration
d) hydroboration-oxidation
e) none
c,d cant be right cuz that cant be rearrangement
i think answer will be B but i am not sure please help
2007-11-06 08:34:14 · 2 answers · asked by jennifer 2 in Science & Mathematics ➔ Chemistry
The answer is C. Oxymercuration-demercuration is a method of synthesizing alcohols from alkenes that obeys Markovnikov's rule. If you use a method that involves acid then carbocations are formed and they are prone to rearrangements. Hydroboration oxidation forms alcohols from alkenes but they are anti Markovnikov. Good luck.
2007-11-06 08:45:58 · answer #1 · answered by Anonymous · 1⤊ 0⤋
c) Only.
d) Often gives anti-Markovnikov addition. a) and b) often give rearrangement.
You wanted minimal skeletal rearrangement. c) and d) assure that.
2007-11-06 16:47:44 · answer #2 · answered by steve_geo1 7 · 1⤊ 1⤋