Preparation of polyquinanes by double addition of vinyl anions to squarate esters: 4,5,6,6a-tetrahydro-3a-hydroxy-2,3-diisopropoxy-4,6a-dimethyl-1(3aH)-pentalenone
Organic SynthesesAddition
A checked procedure from Organic Syntheses, the journal whose preparations are repeated in a second laboratory before publication. The full experimental, with amounts, hazards and characterisation data, is on orgsyn.org.
Reagents
The compound this preparation makes is not in the catalogue, so no reagents or figures are listed here.
More addition reactions
- 1,2-Addition of a functionalized zinc-copper organometallic [RCu(CN)ZnI] to an α,β-unsaturated aldehyde: (E)-2-(4-hydroxy-6-phenyl-5-hexenyl)-1H-isoindole-1,3(2H)-dione
- Addition of an ethylcopper complex to 1-octyne: (E)-5-ethyl-1,4-undecadiene
- Addition of dialkylamines to myrcene: N,N-diethylgeranylamine
- Addition of organolithium reagents to allyl alcohol: 2-methyl-1-hexanol
- Aprotic double Michael addition: 1,3-dimethyl-5-oxobicyclo[2.2.2]octane-2-carboxylic acid
- Asymmetric hydroboration of 5-substituted cyclopentadienes: synthesis of methyl (1 R,5R)-5-hydroxy-2-cyclopentene-1-acetate