alkyne - 2023 ARCADIA - Buzzpoints App

Question

The Pauson-Khand (“PAW-son KOND”) reaction features a synthetically impressive ability to form three new carbon–carbon bonds from an alkene, a carbonyl source, and this functional group. For 10 points each:

[10h] Name this functional group that has decent backbonding ability, allowing it to form double metallo·cyclo·propane complexes.

ANSWER: alkyne [reject “alkane” or “alkene”]

[10m] In Pauson-Khand reactions, this compound serves as a carbonyl source. This excellent backbond acceptor is a strong dative ligand for metal centers.

ANSWER: carbon monoxide [accept CO]

[10e] The oxidant N·M·O may be added in the Pauson-Khand reaction to improve this metal’s ability to act as a catalyst. This non-copper metal can be found within vitamin B12 complexes and names a blue pigment.

ANSWER: cobalt [accept Co; accept cobalt blue]

<JZ, Chemistry>

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Summary


2023 ARCADIA at UC Berkeley	Premiere	Y	2	10.00	100%	0%	0%
2023 ARCADIA at Carleton University	Premiere	Y	3	13.33	100%	0%	33%
2023 ARCADIA at Claremont Colleges	Premiere	Y	1	10.00	100%	0%	0%
2023 ARCADIA at Duke	Emory, Duke, Yale	Y	4	12.50	100%	0%	25%
2023 ARCADIA at Emory	Emory, Duke, Yale	Y	4	12.50	100%	25%	0%
2023 ARCADIA at Imperial	Imperial	Y	5	16.00	100%	40%	20%
2023 ARCADIA at Indiana	Premiere	Y	5	12.00	80%	40%	0%
2023 ARCADIA at Maryland	Maryland, Online	Y	3	3.33	33%	0%	0%
2023 ARCADIA at Ohio State	Ohio State, Texas	Y	3	10.00	100%	0%	0%
2023 ARCADIA Online	Maryland, Online	Y	3	13.33	100%	0%	33%
2023 ARCADIA at RIT	Premiere	Y	2	5.00	50%	0%	0%
2023 ARCADIA at Texas	Ohio State, Texas	Y	3	10.00	100%	0%	0%
2023 ARCADIA at WUSTL	Premiere	Y	3	13.33	100%	33%	0%

Data


Berkeley B	Berkeley A	0	0	10	10
I will play anything with a buzzer in front of me	Claremont	0	0	10	10
Missouri A	Missouri B	0	10	10	20
SIUE	Squidward Community College	0	0	10	10
WUSTL H2O	WUSTL XYZ	0	0	10	10
Stanford A	Berkeley C	0	0	10	10
McDouble West-Carleton	Toronto Ray Of Sun in the Sky	10	0	10	20
Ottawa A	Waterloo	0	0	10	10
Ottawa B	Ottawa C	0	0	10	10
Purdue B	Indiana	0	0	0	0
George Washington A	Johns Hopkins	0	0	0	0
Maryland A	Maryland B	0	0	10	10
Ohio State B	Michigan B	0	0	10	10
Arizona State	Farrellmagnetism	10	0	10	20
Ganon Evans Fan Club	Zen and the Art of Buzzing	0	0	10	10
RIT	Cornell R	0	0	0	0
Texas A	Texas B	0	0	10	10
Duke	James Madison B	0	0	10	10
James Madison A	NC State	0	0	10	10
North Carolina A	South Carolina A	10	0	10	20
North Carolina B	South Carolina B	0	0	10	10
Georgia B	Emory A	0	0	10	10
Georgia Tech A	Georgia Tech D	0	0	10	10
Georgia Tech B	Georgia Tech C	0	10	10	20
Tennessee A	Georgia A	0	0	10	10
Imperial A	Birmingham	0	10	10	20
Bristol	Edinburgh	0	0	10	10
Cambridge A	Durham	0	10	10	20
Imperial B	Oxford	10	0	10	20
Warwick	Cambridge B	0	0	10	10
Notre Dame B	Chicago A	0	0	10	10
Notre Dame A	Chicago B	0	0	10	10
Illinois A	Purdue A	0	10	10	20
Illinois B	Vanderbilt	0	10	10	20
Georgetown	George Washington B	0	0	0	0
Kenyon B	OSU A	0	0	10	10
Kenyon A	Michigan A	0	0	10	10
MSU A and Friend	Boston College	0	0	10	10
Syracuse+Rochester	Cornell MATLAB	0	0	10	10
Texas C	TAG Magnet: Taylor's Version	0	0	10	10
TAMU	HCC	0	0	10	10