Answer:
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5. Propose a mechanism to justify the formation of the following product. (4) Br 1. NaNH2,...
4. Propose a mechanism for the formation of the following products OH +OH Br 5. Draw the structure of product formed in the following reaction Cl C4HgS Na DMSO Cl Draw the mechanism leading to product formation.
3. Draw a detailed arrow-pushing mechanism for the following transformation. (4 pts) Br. Br 1. NaNH2 2. H30+
4. Propose a mechanism to explain the formation of the unexpected product: 1. xs. CH3CH2MgBr _THE OCH, 2. H30* expected product unexpected product 8 pts.
Problem 1 (10 pts) Draw the major product (monoalkylation) and propose a mechanism for its formation. OCH3 (CH3)3CCI AICI: Problem 2 (10pts) Draw the major product of the following reactions. Brz FeBr3 a) HNO3 H2SO4 b) OH ON NOZ NaOH 50°C c) Br Problem 3 (10 pts) Show the necessary steps for each of the following transformations. CO2H ŞO3H NO2 Br a) b)
QUESTION 4 Identify the main product of the following transformation. 1) PPhg 2) NaNH2 Br Br A) 3) benzaldehyde 4) HBT B) C) °C D) Br Br B OOOO с D
Propose a plausible mechanism for the following reaction Br Br 2 ?? Propose a plausible mechanism for the following process, ca tonization:
1. Predict the products of the following reactions. excess NaNH2 THE Br Br H 1. NaNH2 2. CH3CH,Br H2SO4, H20 Hz, Pd/BaSO4 quinoline, CH3OH Na, NH3 1 equivalent HBO NaNH2 Br (excess) 1. Sia,BH, THE 2. H2O2, NaOH HgSO4 H2SO4 H2O
propose a mechanism for the formation of this
compound.
the the major ketal product is ethyl acetoacetate
ethylene ketal.
4. (in H22 Os veyi acciacciate. 4. The ketal product contains a minor amount (< 0.1%) of a substance, C4H20s whose molecular structure contains ester and ketal groups. Propose a structure for the compound and a mechanism for its formation.
What is the major product of the following reaction? HBr (1 eq.) Br Br А Br B с D Br A B С What is the major product of the following reaction? COOME A COOME COOME COOME COOME COOME B D COOME COOM COOM COOME OA OB D What is the best method to synthesize the following product from the given starting material? Br Br H A 1) NaNH2 2) CHgBr 3) H2. Pd/C 4) Br2 B 1) NaNH2 2)...
8. Propose a reasonable mechanism to account for the formation of the following product: OCH2CH3 CH3CH OH Heat