Using triethynylphosphine ligands bearing bulky end caps to create a holey catalytic environment: Application to gold(I)-catalyzed alkyne cyclizations

Journal of the American Chemical Society

Volumn 128, Issue 51, 2006, Pages 16486-16487

  Ochida, Atsuko ^a   Ito, Hideto ^a   Sawamura, Masaya ^a  

^a HOKKAIDO UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

ALKYNE DERIVATIVE; GOLD; LIGAND; PHOSPHINE DERIVATIVE;

ARTICLE; CARBON NUCLEAR MAGNETIC RESONANCE; CATALYSIS; CATALYST; COMPLEX FORMATION; CYCLIZATION; ISOMER; ISOMERIZATION; MOLECULAR STABILITY; PHOSPHORUS NUCLEAR MAGNETIC RESONANCE; QUANTUM YIELD; REACTION ANALYSIS; STEREOSPECIFICITY;

ACETYLENE; ALKYNES; CATALYSIS; CYCLIZATION; GOLD; LIGANDS; MOLECULAR STRUCTURE; PHOSPHINES; POROSITY; STEREOISOMERISM;

EID: 33845959705     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja066800c     Document Type: Article

References (24)

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19. 3)]/AgOTf catalyst has been reported (ref 6a), but it was much slower than the related 5-exo-dig cyclizations, requiring catalyst loading as high as 5 mol % for complete conversion (18 h).
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21. The donor power was estimated by DFT calculations taking the electrostatic potential minimum in the lone-pair region. Details will be reported elsewhere.
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