9-Fluorenyl 9-(p-tolylsulfonyl)-9-fluorenyl disulfide: the unexpected product of the reaction of 9-bromofluorene and potassium p-toluenethiosulfonate and the mechanism of its formation
作者:John L. Kice、Tatianna G. Kutateladze、Lidia Kupczyk-Subotkowska
DOI:10.1021/jo00021a036
日期:1991.10
Reaction of potassium p-toluenethiosulfonate with 9-bromofluorene leads, not to the expected 9-fluorenyl p-toluenethiosulfonate (3), but rather to a product shown to be 9-fluorenyl 9-(p-tolylsulfonyl)-9-fluorenyl disulfide (7, R = 9-fluorenyl) (eq 11). This disulfide of unusual structure is shown to arise as a result of the following reaction sequence: (a) initial formation of 3; (b) a facile elimination of 3 (due to the acidity of the 9-H), forming p-toluenesulfinic acid and 9-thiofluorenone (4); (c) addition of p-CH3C6HSO2- to 4 to give alpha-sulfonyl thiolate ion 16; and (d) reaction of 16 with remaining 3 (in a rapid displacement at the dicoordinate sulfur) to give 7 plus regeneration of p-CH3C6H4SO2-.
HUISGEN R.; RAPP J., J. AMER. CHEM. SOC., 109,(1987) N 3, 902-903
作者:HUISGEN R.、 RAPP J.
DOI:——
日期:——
Thiocarbonyls. II. Thiofluorenone<sup>1</sup>
作者:E. Campaigne、Wm. Bradley Reid
DOI:10.1021/ja01209a020
日期:1946.5
THIOCARBONYLS. IV. THE STRUCTURE OF DIFLUORYL TRISULFIDE AND DIBENZOPHENONE TRISULFIDE<sup>1</sup>