Question

Description acceptable. A highly chemoselective form of this process can occur via a Norrish Type II photo·isomerization in nitro·benzyls such as NVOC. Anisole and p-cresol are used to prevent damaging side reactions after acylium carbocations are produced via a form of this process that uses an SN1 reaction with TFA. It’s not related to quizbowl, but this process occurs when light is shone on PPGs. Performing a type of this process selectively at low pH relies on large steric differences, such as between (*) TIPS and DMIPS. (10[1])This process is the first step of each cycle of the phosphoramidite (10[1])method, in which the formation of a DMT (-5[1])cation yields a bright orange color. Coupling and this process alternate in solid-phase peptide synthesis, (-5[1])which usually uses piperidine to perform this process on (10[1])Fmoc. (10[1]-5[1])For 10 points, name this process exemplified by treating a silyl ether with TBAF or an acid to restore an alcohol group. ■END■ (10[2]0[5])

ANSWER: deprotection [or word forms; accept descriptions of removing a protecting group; prompt on desilylation or detritylation by asking “what general chemical task does that reaction exemplify?”; prompt on removal or cleavage or word forms]
<Adam Fine, Chemistry>
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Summary

2023 Chicago Open08/05/2023Y967%0%33%124.50

Buzzes

PlayerTeamOpponentBuzz PositionValue
Vittal BhatQuasicrystal SilenceThe Plague (anime)" was redirected to: "Oran High School Host Club8510
Eric MukherjeeCurse you, Periplus the Platypus![moderator voice] yes that is so tenpointscore! is your team feeling bonuspilled?9710
Andrew WangThe anti-STOON-dahl cabal (the tall Keyal et al.)wave2: trimming membership codes 9655377758gp105-5
Billy BusseBHSUHang et al., Robert Browning120-5
Mazin OmerDon't be Afraid, the Clown's Afraid TooRomanos IV Diogenes’ Macaroni Grill12910
Shahar SchwartzSaint Peter Andre 3000Teach Us to Outgrow Our Ladness130-5
Vishwa ShanmugamIn Search of Things PastEvans Hall destruction awaiters13010
John Marvinremembrance of lost timeI prefer really not to speak. If I speak I’m in big trouble1530
Ali HamzehI prefer really not to speak. If I speak I’m in big troubleremembrance of lost time1530
Mike SoriceTeam Name Think DetailThe Canadians1530
Chris SimsThe CanadiansTeam Name Think Detail15310
Cyrus Zhouwave2: trimming membership codes 9655377758gpThe anti-STOON-dahl cabal (the tall Keyal et al.)1530
Jeremy CummingsHang et al., Robert BrowningBHSU15310
Jerry VinokurovTeach Us to Outgrow Our LadnessSaint Peter Andre 30001530