Ohira-Bestmann ·
Aldehyde → Terminal Alkyne
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seel
.com · RCHO → RC≡CH · K₂CO₃ / MeOH, no strong base
Step
idle
N₂ lost
0
Stage
reagent + aldehyde
Phosphonate P(=O)(OMe)₂
Diazo carbon / N₂
Aldehyde R-CHO
Acetyl trigger / carbene
New C≡C bond
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