Question
A reagent containing this metal is transmetalated to a halogen by a palladium catalyst during Stille (“STILL-lee”) cross-coupling. For 10 points each:
[10e] Name this metal found in organostannane (“OR-gan-noe-STAY-nane”) compounds. This metal is alloyed with copper to produce bronze.
ANSWER: tin [or Sn]
[10h] Two organotins cleave a carbonothioyl (“KAR-boh-noe-THY-oil”) in the second step of a deoxygenation reaction named for this chemist and McCombie. He names a reaction in which a delta-nitroso alcohol is formed from the photolysis of a nitrite ester.
ANSWER: Derek Barton [or Sir Derek Harold Richard Barton; accept Barton-McCombie deoxygenation; accept Barton reaction or Barton nitrite ester reaction]
[10m] In another Barton-named reaction, this functional group is converted into a Barton ester before being removed by AIBN (“A-I-B-N”) and tributylstannane. Two compounds containing this functional group can be prepared via the ozonolysis of an internal triple bond.
ANSWER: carboxyl group [accept carboxylic acids; accept carboxylates; accept COOH; accept Barton decarboxylation]
<Kane Nguyen, Chemistry>
Summary
| 2024 Penn Bowl Florida | 10/26/2024 | Y | 2 | 15.00 | 100% | 50% | 0% |
| 2024 Penn Bowl UK | 10/26/2024 | Y | 5 | 10.00 | 100% | 0% | 0% |
| 2024 Penn Bowl UNC | 10/26/2024 | Y | 3 | 20.00 | 100% | 67% | 33% |
Data
| Gressenheller A | Four Times I Have Despised My Soul | 10 | 0 | 0 | 10 |
| Oxford School for Quizness | LSE | 10 | 0 | 0 | 10 |
| Limp Quizkit | The Crying of Team 49 | 10 | 0 | 0 | 10 |
| See it | Say it | 10 | 0 | 0 | 10 |
| Sorted | 3HK1MM | 10 | 0 | 0 | 10 |