Klaveness, Jo; Rise, Frode; Undheim, Kjell, Acta chemica Scandinavica. Series B: Organic chemistry and biochemistry, 1986, vol. 40, # 5, p. 373 - 380
作者:Klaveness, Jo、Rise, Frode、Undheim, Kjell
DOI:——
日期:——
Influence of an Oxidising Impurity on Preparation of 2-Lithio-1,3-dithiane: Isolation of bis[2-d,3-Dithianyl)]methanol
作者:Narshinha P. Argade、Braja G. Hazra、Padmakar L. Joshi
DOI:10.1080/00397919608005213
日期:1996.8
Bis-dithianylalkanols and dimers are formed in preparation of 2-lithio-1,3-dithianes due to the presence of oxidising impurity in n-BuLi (perhaps n-BuOOLi).
Lam, Yulin; Wong, Ming Wah; Huang, Hsing-Hua, Journal of the Chemical Society. Perkin Transactions 2 (2001), 2000, # 10, p. 2090 - 2095
作者:Lam, Yulin、Wong, Ming Wah、Huang, Hsing-Hua、Liang, Eping
DOI:——
日期:——
1,3-Dithienium- und 1,3-Dithioleniumsalze. IX. Reaktionen von 1,3-Dithian-2-ylium-tetrafluoroboraten mitC-Nucleophilen
1,3-Dithian-2-ylium tetrafluoroborates (1), which can be easily obtained by variable methods, react in good to excellent yields with variable C-nucleophiles to new geminal disubstituted 1,3-dithianes. The latter compounds are potential precursors of interesting synthetic building blocks. Reactions are described with 2-lithio-1,3-dithianes 2, sodium cyanide 4, sodium salts of the nitro alkanes 7 and CH-acids of the type of the 1,3-dicarbonyl compounds 9. The reduction of 3-oxo-2(2-phenyl-1,3-dithian-2-yl)-ethoxybutanoat - following a diastereoselective pathway - leads to the Cram product 11. Further presented is the crystal structure of 2-phenyl-1,3-dithiane-2-ylium tetrafluoroborate (1b).
KRUSE C. G.; POELS E. K.; GEN A., J. ORG. CHEM., 1979, 44, NO 16, 2911-2915