Reaction (i) Me HBr Reaction (ii) H202 H20 H BH3 он Me. Me Me 1 equivalent 1 equivalent Ме NaOH Me Br Он unexpected major product intermediate X
reactions with 2-butyne (shown below). In reaction (i) the
HBr, which successful provides (Z)-2-bromo-2-butene. In reaction (ii) the alkyne is subjected to a
two-step hydroboroation/oxidation sequence. Interestingly, Everett’s second reaction fails to
provide the desired methyl
(a) Provide the structure of intermediate X form the first step of reaction (ii).
(b) Briefly explain (use structures if necessary) why reaction (i) provided an
reaction (ii) provided an
reaction.
Step by step
Solved in 4 steps with 4 images
