Question
Octahedral carbonyls are particularly labile when in this position relative to ligands that are neither pi accepting nor sigma donating. For 10 points each:
[10m] Name this configuration adopted by the ammine (“AH-mean”) ligands on carboplatin, making it more stable.
ANSWER: cis [accept cis effect; prompt on Z or zusammen]
[10e] This pericyclic reaction preserves stereochemistry, so adding cis substituents to either the dienes or dienophiles will form syn cyclohexenes.
ANSWER: Diels–Alder reaction
[10h] Ronald Breslow reported that this solvent greatly accelerates the Diels–Alder reaction and shifts it further towards endo products. Lanthanide triflates can be used as dienophile activators in this solvent.
ANSWER: water [or H2O; accept water-compatible Lewis acids]
<Chemistry>
Data
| Team | Opponent | Part 1 | Part 2 | Part 3 | Total |
|---|---|---|---|---|---|
| Arizona State | Yale A | 0 | 10 | 0 | 10 |
| Chicago D | North Carolina B | 0 | 10 | 0 | 10 |
| Claremont Colleges | McGill | 0 | 10 | 0 | 10 |
| Columbia A | Minnesota A | 0 | 10 | 0 | 10 |
| Columbia B | Berkeley A | 0 | 0 | 0 | 0 |
| Harvard | Minnesota B | 0 | 10 | 0 | 10 |
| Illinois | Brown | 0 | 10 | 10 | 20 |
| Indiana | Virginia | 0 | 10 | 0 | 10 |
| Iowa State | Berkeley B | 0 | 10 | 0 | 10 |
| Johns Hopkins | Chicago B | 0 | 10 | 0 | 10 |
| Kentucky | North Carolina A | 0 | 0 | 0 | 0 |
| Maryland | Vanderbilt | 10 | 10 | 0 | 20 |
| Michigan | Toronto B | 0 | 10 | 10 | 20 |
| Northwestern | Penn | 10 | 10 | 0 | 20 |
| South Carolina | Cornell B | 0 | 10 | 0 | 10 |
| Texas | Georgia Tech | 0 | 10 | 0 | 10 |
| Toronto A | Florida | 0 | 10 | 0 | 10 |
| WUSTL A | Rutgers | 10 | 10 | 0 | 20 |
| Waterloo | Cornell A | 0 | 10 | 0 | 10 |
| Yale B | Truman State | 0 | 10 | 10 | 20 |
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| 2024 ACF Nationals | 04/21/2024 | Y | 20 | 12.00 | 90% | 15% | 15% |