The photochemical Birch-type reduction of arenes and the photodehalogenation of haloarenes by a hydroxide ion that acted as an electron source occurred in 2-PrOH. The efficiency of these photoreactions was dependent on the nature of the substrate, the concentration of NaOH, and the solvent used. These photoreactions provide an environmentally friendly method for the reduction of aromatic rings and
A Chemical Study ofVirginia Tobacco Flavour (Nicotiana tabacum L.) II. Isolation and synthesis ofcis-2-isopropenyl-8-methyl-1,2,3,4-tetrahydro-1-naphthalenol and 3-isopropenyl-5-methyl-1,2-dihydronaphthalene
作者:Edouard Demole、Paul Enggist
DOI:10.1002/hlca.19780610416
日期:1978.6.7
Gas liquid chromatography allowed isolation of the novel cis-2-isopropenyl-8-methyl-1,2,3,4-tetrahydro-1-naphthalenol (A) and its dehydration product, 3-isopropenyl-5-methyl-1,2-dihydronaphthalene (B), from two small subfractions of Virginia tobacco condensate. Both these norsesquiterpenes were identified on spectral grounds and synthesized from 1-methylnaphthalene in a way (9 steps) that also afforded