Note: crossed or mixed aldol condensations (2 different aldehydes or ketones), work much better if one of the reagents has no alpha-hydrogens.
beta only, mostly reversible reactions | either C=O or beta, depending on steric factors, irreversible | carbonyl only, irreversible reactions |
OH-, CH3O- | RMgX | LiAlH4 |
NH2R, NC- | RLi | Wittig, Ph3P=CHR |
enolates | ||
R2CuLi (irrev) |
Notes:
Notes: