51953-76-5

Upstream product

• 83846-22-4 1-Phenyl-9-methylbicyclo<3.3.1>nonan-9-ol 
• 1444-65-1 (RS)-2-phenylcyclohexanone 
• 55981-53-8 5-Phenyl-bicyclo[3.3.1]non-2-en-9-one 
• 51953-71-0 1-Phenyl-9-aethoxycarbonylbicyclo<3.3.1>nonan 
• 51953-79-8 2-(3-Hydroxy-propyl)-2-phenyl-cyclohexanone 
• 51953-70-9 [(Z)-Cyclooct-4-en-(E)-ylidene]-acetic acid ethyl ester 
• 31598-70-6 cis-cyclooct-4-enone 
• 51953-75-4 (1-Phenyl-bicyclo[3.3.1]non-9-yl)-methanol 
• 36399-42-5 1-Phenyl-bicyclo<3.3.1>nonan-9-on 
• 1779-49-3 Methyltriphenylphosphonium bromide 

Relevant academic research and scientific papers

Dehydration of 1-Substituted Secondary and Tertiary Bicyclononan-9-ols. A Substituent-Driven Rearrangement to 4-Substituted and/or Angularly Substituted Hexahydroindenes

The acid-catalyzed dehydration of substituted bicyclononan-9-ols (1-9) has been studied as a route to substituted hexahydroindenes via skeletal rearrangement.The nature of the substituent at C1 strongly affects the rearrangement.Thus 1-substituted secondary alcohols 1-3 (R = Ph, CH3, H) afford 4-substituted 2,3,4,5,6,7-hexahydroindenes 1b-3b, while a mixture of 3a-carbethoxyhexahydroindenes (4a,b) is produced from 4 (R = CO2Et).Tertiary alcohols 5-9 afford cis-3a-substituted 2,3,3a,6,7,7a-hexahydroindenes 1a-9a.These processes are discussed in terms of relative stabilities of the intermediate carbonium ions.