Efficient Synthesis of Vinylcycloalkylphenyl Sulfides from DME-Activated NANH2Induced Intramolecular Dialkylation of Allylphenylsulfide
摘要:
Vinylcycloalkylphenylsulfides have been prepared efficiently by a one-pot intramolecular dialkylation of allylphenylsulfide. The used basic reagent is constituted of a suspension of commercial NaNH2 in 1,2-dimethoxyethane as nonionic activating agent.
Synthesis of cyclic ethers and allylic sulfides by rearrangement of phenylsulfanyl substituted 1,n-diols with toluene-p-sulfonic acid and with toluene-p-sulfonyl chloride
作者:Laurent Djakovitch、Jason Eames、David J. Fox、Francis H. Sansbury、Stuart Warren
DOI:10.1039/a905498g
日期:——
Rearrangement of a series of 1,n-diols (n = 2 to 12), with a PhS-group adjacent to one OH group, under two sets of conditions gives single compounds in excellent yield drawn for four possible classes of products. The effect of the chain length helps in the understanding of the different cyclisation modes and the mechanism of the rearrangements.
Eames, Jason; Mitchell, Helen J.; Nelson, Adam, Journal of the Chemical Society. Perkin transactions I, 1999, # 8, p. 1095 - 1104
作者:Eames, Jason、Mitchell, Helen J.、Nelson, Adam、O'Brien, Peter、Warren, Stuart、Wyatt, Paul
DOI:——
日期:——
An efficient protocol for a sharpless style racemic dihydroxylation
作者:Jason Eames、Helen J. Mitchell、Adam Nelson、Peter O'Brien、Stuart Warren、Paul Wyatt
DOI:10.1016/0040-4039(95)00054-g
日期:1995.3
Dihydroxylation with solid OsCl3 to provide the catalytic oxidant, K3Fe(CN)(6) as stoichiometric oxidant, quinuclidine as the accelerating ligand with added K2CO3 and methanesulfonamide in a two-phase system (water and t-butanol) gives excellent yields of racemic syn diols from various alkenes (stilbenes, sulfides and phosphine oxides).