Thiocamphor has been found to furnish bornane, camphor, isoborneol, isobornylthiol, bornylthiol, tetrahydro-bis-(1,7,7-trimethylbicyclo[2.2.1]heptyl)-3,3'-disulfide, and three isomeric bis-(1,7,7-trimethylbicyclo[2.2.1]heptyl)-3,3'-dithiols when treated with NaBH(4) either in dry THF or dry diethylene glycol diethyl ether. The origins of the above interesting compounds and their mass spectral characterization are presented in this article.
The Use of Sulfides Derived from Carane, <i>P</i>-Menthane, Pinane, and Bornane in the Synthesis of Optically Active Epoxides
作者:Anna Banach、Jacek Ścianowski、Piotr Ozimek
DOI:10.1080/10426507.2013.819867
日期:2014.1.1
Abstract Convenient routes for the synthesis of optically active methyl, phenyl, and dimonoterpenyl sulfides derivedfrom carane, p-menthane, pinane, and bornane were developed. Methyl and dimonoterpenyl sulfides have been obtained by the reaction of the corresponding monoterpene thiolates with methyl iodide or monoterpene tosylates. The reactions of monoterpene tosylates with sodium benzenethiolate
Asymmetric methylene transfer reactions II: Asymmetric synthesis of oxiranes from carbonyl compounds by methylene transfer reaction using chiral S-neomenthyl and S-exo-2-bornyl sulfoximines
作者:Shabbirali S. Taj、Amrish C. Shah、Doowon Lee、Gary Newton、Raghavan Soman
DOI:10.1016/0957-4166(95)00219-f
日期:1995.7
its epimer at sulfur, (1R,Rs)-(+)-9b, and (1R,3S,4S,1′S,Rs)-(+)-S-methyl-S-neomenthyl-N-(camphor-10-sulfonyl) sulfoximine, 19, were used as methylenetransfer reagents in the preparation of nonracemic oxiranes (enantiomeric excess, 19–86%) from prochiral carbonyl compounds. Sulfoximines 9a and 9b were found to be less effective (ee, 19–68%) than the corresponding S-neomenthyl sulfoximines 2a and 2b (ee