Chemistry
Autor: clairehobbs • October 9, 2016 • Exam • 361 Words (2 Pages) • 754 Views
Page 1 of 2
1. Which of the following will undergo electrophilic aromatic substitution most readily? a. Pyrrole
- Thiophene
- Furan
- Pyridine
2. Which of the following will undergo nucleophilic aromatic substitution most readily? a. Pyrrole[pic 1]
- Thiophene
- Furan
- Pyridine
- Which of the following will undergo electrophilic aromatic substitution most readily?
[pic 2]
- Which of the following will undergo nucleophilic aromatic substitution most readily?
[pic 3]
- [pic 4]Why is it necessary to convert pyridine to pyridine Noxide for the above reaction?
[pic 5]
- To increase the nucleophilicity of the pyridine ring
- All of the above
6. Suggest a suitable reagent for X in the above reaction.
- KMnO4
- PhCO2H
- PhCO3H
- O3
7. Suggest a suitable reagent for Y in the above reaction.
- PPh3
- PCl3
- P(OMe)3
- H3PO4
- [pic 6]What is the name of the following synthesis?
[pic 7]
- . Suggest a suitable reagent for X in the above 12. For the following reaction, suggest a suitable reaction scheme? reagent X?
- DDQ a. EtMgBr
- DBU b. MeMgBr and EtBr
- DMPU c. NaH and EtI
- DMAP d. n-BuLi and MeBr (2 equivalents)[pic 8]
10. Which of the following is not a correct resonance structure intermediate in the following 13. What is the product of the following reaction?
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