Question

A “pyridine-enhanced” NHC catalyst system for these reactions contains an alpha-donating 3-chloropyridine (-5[1])group, as well as a bulky IPr ligand. For these reactions, the Organ group created stable PEPPSI catalysts. Many catalysts for these reactions contain the ferrocene ligand dppf. (15[1])Nonaflates (“NON-uh-flates”) and triflates are useful electrophiles for these reactions. It is difficult to perform most of these reactions with alkyl compounds in water due to (*) beta-hydride elimination side reactions. One of these reactions used to synthesize substituted biphenyls uses a catalyst with a transition metal and four triphenylphosphine groups. These reactions (10[1])go through a (-5[1])catalytic cycle of oxidative (-5[1])addition, transmetalation, (10[2])and reductive (10[1])elimination steps. For 10 points, name this class of reactions that uses a palladium(0) catalyst to form carbon–carbon bonds, such as one named for Suzuki. ■END■ (10[2]0[8])

ANSWER: cross-coupling reactions [or palladium-catalyzed cross-coupling reactions or hetero-coupling reactions; accept Suzuki coupling until “Suzuki” is read; prompt on Suzuki reaction until “Suzuki” is read; prompt on coupling reactions; prompt on aminations; prompt on intramolecular Heck transformations; reject “homo-coupling reactions”]
<KP, Chemistry>
= Average correct buzz position

Summary

2024 Chicago Open07/28/2024Y1258%8%25%97.43

Buzzes

PlayerTeamOpponentBuzz PositionValue
Kai SmithPunished "Venom" BHSUI’ll take a quiet 10 / A handshake of CO (Chicago Open)11-5
Billy BusseBHSU Bit's the great pumpkinification objection, charlie brown3915
Kevin WanggenAI this, genAI that, have you found your 真爱 yetCharlotte's Moderately Successful Team9010
Ethan AshbrookGalvanized Square Steen and Eco-Friendly Wood VermeerLMM's LLM MLM93-5
Richard NiuAMOGH QUIZ HACK? 英雄联盟 400 PPG 24 TUHThe Dyatlov Passement incident97-5
Adam Finesticking out your guyot for the ridge push; you're so seafloor spread, you're so fracture zoneMindgoblin of Little Hobbes9910
Vivek SasseThere are buzzable clues everywhere for those with eyes to seeBerkeley Mafia and the Chicago Boy9910
Jason HongThe Jeam TeamRead slowly: A A A A A A A A A A A A A A A Read quickly: A10110
Kenji ShimizuI’ll take a quiet 10 / A handshake of CO (Chicago Open)Punished "Venom" BHSU1270
Fred GarveyLes MissourablesAre You There, Chat? It's Me, Margaret12710
Nikhil DesaiFirst Cause, First Cause, make me young!NJTRANSit (and bobby, i guess)1270
Sky HongNJTRANSit (and bobby, i guess)First Cause, First Cause, make me young!1270
Gareth ThorlaksonThe Empire Bikes BackLisan al-Quib1270
Mike CheyneThe Oldest Men in the WorldNJTRANSit (and anwen, I guess)1270
Eric MukherjeeLMM's LLM MLMGalvanized Square Steen and Eco-Friendly Wood Vermeer1270
Natan HoltzmanLisan al-QuibThe Empire Bikes Back1270
Cindy GaoNJTRANSit (and anwen, I guess)The Oldest Men in the World12710
Raul PassementThe Dyatlov Passement incidentAMOGH QUIZ HACK? 英雄联盟 400 PPG 24 TUH1270