You
will work as a group on this exercise. A sample of tert-butyl
bromide (2-bromo-2-methyl propane) has been contaminated with some
methyl bromide. The NMR spectrum of this sample shows two signals,
one at 2.2 ppm and one at 1.8 ppm, corresponding to these two
compounds respectively. The integrals of the two signals equate to
6:1 respectively. What is the mole percent of each compound in the
mixture, or phrasing it another way, what percentage of the mixture
is tert-butyl...
X on polymerisation gives neoprene. Identify X.
a) 1-chloro-1,3-butadiene
b) 2-chloro-1,3-butadiene
c) 1-methyl-1,3-butadiene
d) 2-methyl-1,3-butadiene
13) Which of the following provides an efficient method of
converting 3-bromo-2-methyl-1-butene into 2-methyl-2-butene?
A) 1) NaOH; 2) H2, Pd/C
B) 1) H2, Pd/C; 2) NaOEt
C) 1) H2, Pd/C; 2) Br2
E) 1) H2, Pd/C; 2) KOtBu
And I have already known that the correct answer is B, but
why?
I cannot understand...Please help!!
Really thanks
Draw the skeletal structure for the major organic product when
4-methylpenta-1,3-diene is treated with DBr
(note, this is deuterated acid):
A) at 35oC.
B) at -80oC.