111341-52-7

Upstream product

• 5390-04-5 pent-1-yn-5-ol 
• 108-98-5 thiophenol 
• 144482-35-9 (E)-5-(phenylthio)pent-4-en-1-ol 
• 280574-88-1 O-(2'-tetrahydropyranyl)-5-phenylthiopent-4-ynol 
• 144482-37-1 (Z)-5-(phenylthio)pent-4-en-1-ol 

Relevant academic research and scientific papers

Facile synthesis and desulfurization of 5-(phenylthio)pyrano[3,2- c][1]benzopyrans starting from 5-phenylthio-4-penten-1-ols and salicylaldehyde via in situ intramolecular cycloaddition of substituted o- quinonemethides

5-(Phenylthio)pyrano[3,2-c][1]benzopyrans (6) were successfully synthesized in high yield by the reaction of 5-phenylthio-4-penten-1-ol (5) and salicylaldehyde (1) in benzene in the presence of p-toluenesulfonic acid and trimethyl orthoformate, trans,trans-Isomer 6a and cis,cis-isomer 6d were produced as major products from (E)5 and (Z)-5, respectively. Treatment of 6a with lithium 4,4'-di-tert-butylbiphenyl or Raney Ni (W-4) lead to trans- pyrano[3,2-c][1]benzopyran 4b which is very difficult to make by direct cycloaddition using unsubstituted 4-penten-1-ol (2b). (C) 2000 Elsevier Science Ltd.

Designed Bifunctional Phosphine Ligand-Enabled Gold-Catalyzed Isomerizations of Ynamides and Allenamides: Stereoselective and Regioselective Formation of 1-Amido-1,3-dienes

By using designed biphenyl-2-ylphosphines functionalized with a remote basic groups as ligands, N-alkynyl-o-nosylamides are directly converted to (1E,3E)-1-amido-1,3-dienes with excellent diastereoselectivities under gold catalysis. With allenamides as su

Stereoselective syntheses of 1,2-dialkyl-1-phenyl cyclopentanes involving intramolecular carbolithiation of α-thioalkenes

2-Ethyl-1-methyl-1-phenyl cyclopentane, unavailable by butyllithium-promoted carbocyclisation of the corresponding alkenyl selenide, has been synthesized from 6-methylseleno-6-phenyl-1-phenylthio-1-heptene and 7-methylseleno-7-phenyl-2-phenylthio-2-octene with high stereocontrol at all the three stereogenic centers. Depending upon the solvent used, the derivative in which the methyl- and the phenylthiomethyl groups are cis (in THF) or trans (in pentane) to each other are formed selectively.