54750-41-3

Upstream product

• 4608-43-9 2,3-dimethyl-3-(4-methylphenyl)-cyclopentanol 
• 199799-26-3 4-(4-Methylphenyl)-4,5-dimethylcyclopent-2-enone 
• 54158-61-1 2-methyl-3-(4-methylphenyl)-2-cyclopentenone 
• 917-54-4 methyllithium 
• 75-16-1 methylmagnesium bromide 
• 765-69-5 2-Methylcyclopentane-1,3-dione 
• 22117-97-1 3-isobutoxy-2-methyl-2-cyclopenten-1-one 
• 130399-04-1 1,2,3,3a,4,9b-Hexahydro-3-hydroxy-7,9b-dimethylcyclopenta-benzothiopyran 
• 130399-02-9 1,2,4,9b-Tetrahydro-7,9b-dimethylcyclopentabenzothiopyran-5-oxide 
• 130399-03-0 1,2,4,9b-Tetrahydro-7,9b-dimethylcyclopentabenzothiopyran 
• 130398-99-1 1,2,3,3a,4,9b-Hexahydro-7,9b-dimethylcyclopentabenzothiopyran-5-oxide 
• 130399-01-8 1,2,3,9b-Tetrahydro-7,9b-dimethylcyclopentabenzothiopyran-5-oxide 
• 130398-92-4 cis-1,2,3,3a,4,9b-Hexahydro-7,9b-dimethylcyclopentabenzothiopyran 
• 130399-00-7 1,2,3,9b-Tetrahydro-7,9b-dimethylcyclopentabenzothiopyran 

Downstream Products

• 51704-29-1 α-cuparenone 
• 4608-43-9 2,3-dimethyl-3-(4-methylphenyl)-cyclopentanol 
• 380379-43-1 laurene 

Relevant academic research and scientific papers

Metal mediated one-pot synthesis of cyclopentanones from allyl vinyl esters or diallyl ethers via tandem Claisen rearrangement and hydroacylation

Cyclopentanones 3 and 7 are generated in a one-pot procedure from allyl vinyl ethers 1 and diallyl ethers 4, respectively. The conversion is carried out in the presence of RhCl(cod)(dppe) or RuCl2(PPh3)3 at elevated temper

Unified approach to the sesquiterpenoids, lauranes and cyclolauranes: Total synthesis of (±)-isolaurene

A general approach to the total synthesis of sesquiterpene, isolaurene (1a) and cyclolaurene (2a) is featured from commercially available 3-methyl cyclopenten-2-one. The strategy includes a Stork-Danheiser sequence concomitant with a Ni(II)-catalyzed conj

Construction of an asymmetric quaternary carbon via an asymmetric aza-Claisen rearrangement and its application in the total synthesis of (+)-α-cuparenone

Excess lithium hexamethyldisilazide (LHMDS) with LiCl prompted the asymmetric aza-Claisen rearrangement of carboxamide and retarded the decomposition of its amide enolate. The addition of these two reagents was a key step that led to the total synthesis o

Lithium-liquid ammonia mediated carbocyclisation of δ,ε- unsaturated esters: Annulation of cyclopentanones

Lithium-liquid ammonia mediated carbanion cyclisation of δ,ε-unsaturated esters leading to cyclopentanes, fused as well as spiro, via annulation is described.

A simple synthesis of (±)-α-cuparenone

A short and simple synthesis of (±)-α-cuparenone from 4-methyl- acetophenone via acid catalyzed decomposition of a β,γ-unsaturated-α- diazoketone is described.

An efficient total synthesis of (±)-laurene

A short and efficient total synthesis of (±)-laurene using a Wittig olefination-Claisen rearrangement-Wacker oxidation protocol is described.

2-methylcyclopentane-1,3-dione: An efficient synthon for the synthesis of (±)-α-cuparenone

A very short and efficient synthesis of (±)-α-cuparenone was achieved in 4 steps from 2-methylcyclopentane-1,3-dione.

A radical cyclisation based strategy to cuparenoids; synthesis of (+)-α-cuparenone, (+)-epilaurene and laurenes

Mercuric acetate catalysed one pot Claisen rearrangement of the cinnamyl alcohol 5, generated the pent-4-enal 9, which on homologation resulted the hex-5-enal 10. Radical cyclisation of the radical anion derived from 10, followed by oxidation provided the

SYNTHESE DES (+/-)-(α)-CUPARENONS DURCH HYDROCARBONYLIERENDE CYCLISIERUNG VON 1,4-DIENEN

Synthesis of title compound via hydrocarbonylating cyclization of 1,4-dienes is reported.