1548-72-7Relevant academic research and scientific papers
A convenient route to aryl trifluoromethyl sulfones by fluoride-catalyzed cross-coupling of arenesulfonyl fluorides with (trifluoromethyl)trimethylsilane and (trifluoromethyl)trimethylstannane
Kolomeitsev,Movchun,Kondratenko,Yagupolski
, p. 1151 - 1152 (1990)
Trifluoromethylsulfonyl substituted aromatic compounds 3a-d are prepared from the corresponding sulfonyl fluorides 1a-d by reacting with (trifluoromethyl)trimethylsilane (or-stannane) in the presence of a base under mild conditions in high yields.
Suzuki–Miyaura Coupling of (Hetero)Aryl Sulfones: Complementary Reactivity Enables Iterative Polyaryl Synthesis
Chatelain, Paul,Sau, Abhijit,Rowley, Christopher N.,Moran, Joseph
supporting information, p. 14959 - 14963 (2019/11/05)
Ideal organic syntheses involve the rapid construction of C?C bonds, with minimal use of functional group interconversions. The Suzuki–Miyaura cross-coupling (SMC) is a powerful way to form biaryl linkages, but the relatively similar reactivity of electrophilic partners makes iterative syntheses involving more than two sequential coupling events difficult to achieve without additional manipulations. Here we introduce (hetero)aryl sulfones as electrophilic coupling partners for the SMC reaction, which display an intermediate reactivity between those of typical aryl (pseudo)halides and nitroarenes. The new complementary reactivity allows for rapid sequential cross-coupling of arenes bearing chloride, sulfone and nitro leaving groups, affording non-symmetric ter- and quateraryls in only 2 or 3 steps, respectively. The SMC reactivity of (hetero)aryl sulfones is demonstrated in over 30 examples. Mechanistic experiments and DFT calculations are consistent with oxidative addition into the sulfone C?S bond as the turnover-limiting step. The further development of electrophilic cross-coupling partners with complementary reactivity may open new possibilities for divergent iterative synthesis starting from small pools of polyfunctionalized arenes.
Copper-Promoted Trifluoromethanesulfonylation and Trifluoromethylation of Arenediazonium Tetrafluoroborates with NaSO2CF3
Zhang, Ke,Xu, Xiu-Hua,Qing, Feng-Ling
, p. 7658 - 7665 (2015/08/18)
A tunable chemoselective trifluoromethanesulfonylation and trifluoromethylation of arenediazonium tetrafluoroborates with Langlois' reagent (NaSO2CF3) was developed. The Cu2O-catalyzed reaction in DMSO gave aryl trifluoromethanesulfones as the major products. On the other hand, the trifluoromethylated arenes were produced in the presence of oxidant tert-butyl hydroperoxide, CuBF4(MeCN)4, and 2,2′;6′,2 terpyridine (tpy). Both of these transformations proceed under mild conditions and tolerate functional groups.
Copper-catalyzed trifluoromethylation of arylsulfinate salts using an electrophilic trifluoromethylation reagent
Lin, Xiaoxi,Wang, Guimei,Li, Huaifeng,Huang, Yuanyuan,He, Weiming,Ye, Dandan,Huang, Kuo-Wei,Yuan, Yaofeng,Weng, Zhiqiang
, p. 2628 - 2632 (2013/03/29)
A copper-catalyzed method for the trifluoromethylation of arylsulfinates with Togni's reagent has been developed, affording aryltrifluoromethylsulfones in moderate to good yields. A wide range of functional groups in arylsulfinates are compatible with the
Convenient one-pot procedure for converting aryl sulfides to nitroaryl sulfones
Nose, Masatoshi,Suzuki, Hitomi
, p. 1065 - 1071 (2007/10/03)
When treated with nitrogen dioxide and ozone in inert solvent at 0°C or below, aryl sulfides underwent smooth oxidative nitration to give nitroaryl sulfones in good yield. Using this methodology, a series of mono- and di-nitrated aryl sulfones were prepared from methyl phenyl sulfide and diphenyl sulfide and their physical data are presented.
Herbicidally active phenylsubstituted 5-and 6-membered heterocyclic compounds
-
, (2008/06/13)
A compound of formula (I): STR1 where E is oxygen or sulphur; A is CR3 or N where R3 is hydrogen or hydrocarbyl; D completes a 5 or 6-membered non-aromatic heterocyclic ring which optionally contains additional heteroatoms selected from oxygen, nitrogen or sulphur and which is optionally substituted by an optionally substituted lower hydrocarbyl group, or an optionally substituted heteroaryl group; R1 and R2 are each independently hydrogen; optionally substituted lower hydrocarbyl, or optionally substituted heteroaryl, or R1 and R2 together with the nitrogen atom to which they are attached, form a heterocyclic ring; Z represents halogen optionally substituted lower hydrocarbyl, optionally substituted lower hydocarbyloxy, optionally substituted lower hydrocarbylthio, hydrocarbylsulphinyl or hydrocarbylsulphonyl, cyano, nitro, CHO, NHOH, ONR7' R7", SF5 ; CO (optionally substituted lower hydrocarbyl), acylamino, COOR7, SO2 NR8 R9, CONR10 R11, OR12 or NR13 R14 where R7, R7', R7", R8, R9, R10 and R11 are independently hydrogen or lower hydrocarbyl; R12 is hydrogen; SO2 lower hydrocarbyl or COR15 ; R13 and R14 are independently lower hydrocarbyl, lower hydrocarbyloxy or a group R12 ; R15 is OR16, NR17 R18, hydrogen or lower hydrocarbyl; R16 is lower hydrocarbyl; R17 and R18 are independently hydrogen or lower hydrocarbyl; provided that when there are two or more substituents Z, they may be the same or different; and m is 0 or an integer from 1 to 5.
