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Unformatted text preview: product is propyne. Give the mechanistic notation for this two step process. (d) When a terminal alkyne is place in water with sulfuric acid and HgSO 4 a methyl ketone is produced. Write the notation for the first three steps. 3. You have three types of ethanols in your lab: unlabeled ethanol, ethanol labeled with 13 C at carbon #1 and ethanol labeled at with 13 C at carbon #2. Show how the ketone below could be synthesized using only the aforementioned ethanols as your only carbon sources. 13 CH 3 CH 2 CCH 3 O HC CH 1) NaNH 2 2) Br C CH HBr, 1 eq. A N π PT A R π A R π PT PT PT S N 2 A E π A N + PT 13 CH 3 CH 2 OH PBr 3 13 CH 3 CH 2 Br 1) Mg, ether 3) H 3 O + 13 CH 3 CH 2 CHCH 3 OH Na 2 Cr 2 O 7 H 2 SO 4 (aq) 2) CH 3 CH O CH 3 CH 2 OH PCC CH 2 Cl 2...
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This note was uploaded on 09/03/2009 for the course CHEM 2250 taught by Professor Stack during the Spring '09 term at UNO.
- Spring '09
- Organic chemistry