WebCPP p-Toluenesulfonic acid (PTSA or pTsOH) or tosylic acid (TsOH) is an organic compound with the formula CH3C6H4SO3H. It is a white extremely hygroscopic solid that is soluble in water, alcohols, and other polar organic solvents. The CH3C6H4SO2 group is known as the tosyl group and is often abbreviated as Ts … See more TsOH is prepared on an industrial scale by the sulfonation of toluene. Common impurities include benzenesulfonic acid and sulfuric acid. TsOH monohydrate contains an amount of water. To estimate the total moisture … See more Alkyl tosylates are alkylating agents because tosylate is electron-withdrawing as well as a good leaving group. Tosylate is a pseudohalide. Toluenesulfonate esters undergo See more • Tosyl • Collidinium p-toluenesulfonate See more • TsOH may be converted to p-toluenesulfonic anhydride by heating with phosphorus pentoxide. • When heated with acid and water, … See more

Hóa 11_Đề thi đề xuất_Chuyên Vĩnh Phúc PDF - Scribd

WebCommon reagents for deprotection: acids (TsOH, TFA, HCl etc) with addition of water * Can be selectively converted into Bn or Bz Examples: O HO OMe HO O O Ph NBS, CCl4 BaCO3, … WebExpert Answer. 100% (9 ratings) Transcribed image text: Draw the major product of this reaction. Ignore inorganic byproducts. new TsOH, H20 Select to Draw + OH ОН Draw the … brick and wood restaurant

Chapter 3 Protecting Groups - Utah State University

WebA: 2-methyl-2-butand =D) 2-methyl-2-butoxide 70) cyclohexanone + NaBHy-Bicyclohexano CHz-CHzCHCHz) = 0-OH 2) G-chloro-2-methylbutane Bicyclohexanol + H2SO4-> … WebMay 7, 1998 · 13. Multitosylation of CD was observed when more than 1.5 equiv of Ts 2 O was used. Ts 2 O was made by the following procedure: A mixture of TsCl (80 g, 0.43 mol) … WebProtein tyrosine kinase inhibitory properties of planar polycyclics obtained from the marine sponge Xestospongia cf. carbonaria and from total synthesis covered officials