1 Give the mechanism for the synthesis of tyrbostin from benzaldehyde. Show how
the carbanion is generated from malononitrile (NCCH2CN) and stabilised (5 marks).
Show the reaction of the carbanion with the benzaldehyde (5 marks). Show how the
resulting alkoxide (O-) is protonated (5 marks). Show how the alkene bond is formed
(5 marks)
CN
ON
&
NCCH2CN
Piperidine
Aldehyde
Tyrphostin
ted Kingdom)
Focus
Answers: 1
Chemistry, 21.06.2019 23:50
2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit
Answers: 3
Chemistry, 22.06.2019 07:00
In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?
Answers: 2
Chemistry, 22.06.2019 14:00
8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.
Answers: 3
Chemistry, 22.06.2019 23:00
Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]
Answers: 1
1 Give the mechanism for the synthesis of tyrbostin from benzaldehyde. Show how
the carbanion is ge...
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