70043-74-2

Upstream product

• 1196-55-0 4,4a,5,6,7,8-hexahydronaphthalen-2(3H)-one 
• 100-44-7 benzyl chloride 
• 70043-58-2 1,2,3,5,6,7,8,8a-octahydro-3-oxo-8a-phenylmethylnaphthalene 
• 70043-57-1 6-Benzyl-1-hydroxy-bicyclo<4.4.0>decan-3-on 
• 946-33-8 2-benzylcyclohexan-1-one 

Relevant academic research and scientific papers

Condensed Cyclic and Bridged-ring systems. Part 13. Synthesis of the Insect Attractant Hydrocarbon, 9a-Carbamorphinan, and X-Ray Structural Analyses of 9a-Carbamorphinan-10-one and 9a-Carba-14α-morphinan-10-one

The insect attractant bridged hydrocarbon, (+/-)-9a-carbamorphinan (1) and its inactive epimer, (+/-)-9a-carba-14α-morphinan (2), have been synthesized through (+/-)-9a-carbamorphinan-10-one (3), and (+/-)-9a-carba-14α-morphinan-10-one (4), prepared by polyphosphoric acid-catalysed cyclization of the double-bond isomeric benzyloctalins (7), derived from Huang-Minlon reduction of 1-benzyl-4,4a,5,6,7,8-hexahydronaphthalen-2(3H)-one (6), followed by the benzylic oxidation with chromic acid.The reduction of the easily accessible (+/-)-9a-carbamorphinan-16-one (10), the orthophosphoric acid-induced cyclization product of (6), provides an efficient alternative route to (1).The structures of the epimeric ketones (3) and (4) have been established by X-ray analysis.