4094-39-7Relevant articles and documents
Catalyst-free arylation of sulfonamidesviavisible light-mediated deamination
Ding, Hao,Ding, Qiuping,Du, Xian,Li, Yi-Hui,Liu, Bing-Zhe,Lu, Shi-Man,Luo, Yong,Qi, Wan-Ying,Xu, Xiao-Hong,Xue, Can,Yuan, Han,Zhen, Jing-Song
, p. 9556 - 9560 (2021/07/25)
A novel arylation of sulfonamides with boronic acids to afford numerous diaryl sulfonesviaa visible light-mediated N-S bond cleavage other than the typical transition-metal-catalyzed C(O)-N bond activation is described. This methodology, which represents the first catalyst-free protocol for the sulfonylation of boronic acids, is characterized by its simple reaction conditions, good functional group tolerance and high efficiency. Several successful examples for the late-stage functionalization of diverse sulfonamides indicate the high potential utility of this method in pharmaceutical science and organic synthesis.
Syntheses, absolute configurations, and UV/Vis spectroscopic properties of new chiral tri- and pentamethinium streptocyanine dyes with 4-aminophenyl 4-methylphenyl sulfoxide endgroups
Reichardt, Christian,Erfurt, Hans-Peter,Harms, Klaus,Schaefer, Gerhard
, p. 439 - 452 (2007/10/03)
Starting with monochiral 4-aminophenyl 4-methylphenyl sulfoxides 3a and 3b, the absolute configurations of which were determined by X-ray analysis, we have synthesized the new chiral C2-symmetrical tri- and pentamethinium streptocyanine dyes 5a