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Tosyl group (blue) with a generic "R" group attached Tosylate group with a generic "R" group attached. Note the extra oxygen, compared to plain tosyl. In organic chemistry, a toluenesulfonyl group (tosyl group, abbreviated Ts or Tos [nb 1]) is a univalent functional group with the chemical formula −SO 2 −C 6 H 4 −CH 3.
The CH 3 C 6 H 4 SO 2 group is known as the tosyl group and is often abbreviated as Ts or Tos. Most often, TsOH refers to the monohydrate, TsOH. H 2 O. [6] As with other aryl sulfonic acids, TsOH is a strong organic acid. It is about one million times stronger than benzoic acid. [6]
Group name Full name Pseudoelement symbol Example Tosyl: p-toluenesulfonyl Ts Tosyl chloride (p-toluenesulfonyl chloride) CH 3 C 6 H 4 SO 2 Cl Brosyl: p-bromobenzenesulfonyl Bs Nosyl o- or p-nitrobenzenesulfonyl Ns Mesyl: methanesulfonyl Ms Mesyl chloride (methanesulfonyl chloride) CH 3 SO 2 Cl Triflyl: trifluoromethanesulfonyl Tf Tresyl: 2,2,2 ...
Tosyl group; Triflate This page was last edited on 23 January 2021, at 06:35 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 License ...
A tosylhydrazone in organic chemistry is a functional group with the general structure RR'C=N-NH-Ts where Ts is a tosyl group. Organic compounds having this functional group can be accessed by reaction of an aldehyde or ketone with tosylhydrazine .
As typical for Sulfonyl halides, TsCl converts alcohols (abbreviated ROH) into the corresponding toluenesulfonate esters, or tosyl derivatives ("tosylates"): CH 3 C 6 H 4 SO 2 Cl + ROH → CH 3 C 6 H 4 SO 2 OR + HCl. Tosylates can be cleaved with lithium aluminium hydride: 4 CH 3 C 6 H 4 SO 2 OR + LiAlH 4 → LiAl(O 3 SC 6 H 4 CH 3) 4 + 4 RH
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In their example with ylide containing phosphine group and tosyl group (Ts), Gessner et al. was able to produce the ketenyl anion product more selective by modifying those parameters, shown in Figure 2. As R group is more electron-withdrawing group, it becomes more likely to leave than tosyl group.