Provide the product for the following reaction.
Provide the product for the following reaction. CO2Me D MeOC= heat heat
Provide the product
for the following reaction.
CO2Me D MeOC= heat heat
please provide the mechanism
H. H MeO2C CO2Me CO2Me "heat CO2Me
Why does the last reaction not require heat but the two above it
do?
2. Give the appropriate conditions for the following tramsformations. If the temperature is crucial, describe the temperature by either cold or hot. HBr ~ Hoteq cold Br CO2Me 내 MeOC. TH heat CO Me CO2Me CO2Me _CO2Me Me ) و COME heat CO2Me OHC CHO CHO CHO
(e) Consider the following reaction sequence: ÇO2Me [4+2] Retro-[4+2] CO2Me MeOzca - E CO2Me CO2Me (i) (ii) Draw the tricyclic intermediate F. Identify compound G and provide mechanistic arrows to describe its formation from tricycle F. [4 marks]
Draw the full arrow-pushing mechanism for the completion steps
of the synthesis of Corymine
MeOC CO2Me c) KBH4 d) Cs2CO3 .IIIlll MeO2 CO2Me a) MSOH b) NaBH3CN HCHO N7" 'N 75% III N7|'N 92% CO2Me HO, CO2Me IIIIIIII e) DIBAL-H 84% (+)-corymine [(+)-4] (X-ray)
19. Provide the product for the alkylation transformation: O LDA / EtBr product D. C. A. B. 22. The mixed Claisen reaction shown provides product in only a trace amount. The starting materials are obtained upon isolation. Why? CO2Me NaoMe CO2Me MeOH CO2Me / dil. HCI Ph + A. pka of the propyl ester is too high B. there is only one a-proton C. the benzoate ester is resonance stabilized D. pka of the propyl ester is too low
provide the major product for
the following reaction?
H30+ } heat
Provide the major product for the following reaction? H30* heat
Provide the major product for the following reaction? Нао heat H Н-
Provide the structure of the major organic product which results
in the following reaction
d) (4 pts) OH H2SO4 Heat