Chiral Sulfur Compounds. XXI. Addition of Azide Ion to β-Aryl-α-phenylsulfinylacrylates
The reaction of methyl β-aryl-α-phenylsulfinylacrylates (1) with sodium azide/acetic acid gives triazoles (6) while the reaction of (1) with sodium azide/hydrochloric acid gives β-azido esters (7a, b).Reaction of (7a) with 1,8-diazabicycloundec-7-e
Dong, Zemin,Hellmund, Kylie A.,Pyne, Stephen G.
p. 1431 - 1436
(2007/10/02)
On the Preparation and Rearrangement of Some Vinylic Sulphoxides
The condensation of methyl benzenesulphinylacetate 1 with a series of aldehydes has been explored using different catalysts.With zinc chloride, the enolate of 1 produces the conjugated ester directly.A base-catalysed rearrangement of these conjugated este
Cass, Quezia B.,Jaxa-Chamiec, Albert A.,Kunec, Ellen K.,Sammes, Peter G.
p. 2683 - 2686
(2007/10/02)
Selective Synthesis of α-Sulphenyl-, α-Sulphinyl-, and α-Sulphonyl-α,β-unsaturated Carbonyl Compounds by the Knoevenagel Reaction
Simple treatment of aldehydes with the carbonyl compounds (1) 2COCH2S(O)nAr; n = 0, 1, 2> and piperidine stereoselectively produces the condensation products (7), the stereochemistry of which is controlled by the steric requirements of two fu
Preparation and Rearrangement of Some Conjugated Phenylsulphinylacetate Derivatives
The direct condensation of saturated or unsaturated aldehydes with methyl phenylsulphinylacetate can be effected with the products undergoing base-catalysed rearrangements, those from saturated aldehydes yielding γ-hydroxy-αβ-unsaturated esters, whilst crotonaldehyde gives rise to methyl 6-phenylsulphinylhexa-2,4-dienoate.
Cass, Quezia B.,Jaxa-Chamiec, Albert A.,Sammes, Peter G.
p. 1248 - 1250
(2007/10/02)
More Articles about upstream products of 90381-86-5