Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Andrzej Zarecki"'
Publikováno v:
Synlett. 2010:2931-2935
The synthesis of functionalized allylic nitro compounds via cross-metathesis with a new cross-metathesis partner, 3-nitropropene, is reported. The reaction of various terminal olefins with 3-nitropropene, promoted by 5 mol% of standard commercially a
Publikováno v:
Tetrahedron: Asymmetry. 10:519-526
A method for the preparation of both enantiomers of tert-butyl(methyl)phenylsilane 2 is presented. Racemic tert-butyl(methyl)phenylsilyl chloride 3 was allowed to react with (R)-(−)-2-amino-1-butanol 4 to give hydrochloride 5. Diastereomer separati
Publikováno v:
Journal of Organometallic Chemistry. 558:227-230
The reaction of (2 R ,3 R )-3-(triphenylsilyl)glycidol ( 1 ) with n -Bu 4 NF·3H 2 O in THF, followed by treatment of the product with p -nitrobenzoyl chloride yields (2 S )-glycidol p -nitrobenzoate ( 4 ) and trans -cinnamyl p -nitrobenzoate ( 6 ) i
Publikováno v:
Topics in current chemistry. 275
Molecular rearrangements consisting of base- or acid-induced dislocation of aromatic or heteroaromaticrings are reviewed. The emphasis is given to recent developments and, in particular, to synthetic applicationof the rearrangement. A novel classific
Autor:
Jerzy Wicha, Andrzej Zarecki
Publikováno v:
The Journal of Organic Chemistry. 69:5810-5812
Reaction of tosylhydrazones of O-substituted alpha-hydroxy or N-substituted alpha-amino aldehydes (2, 7, 11, 15, 17, and 20) with selected alpha-magnesio alkyl phenyl sulfones afforded the respective derivatives of allylic alcohols or allylic amines.
Publikováno v:
ChemInform. 42
Autor:
Jerzy Wicha, Andrzej Zarecki
Publikováno v:
ChemInform. 27
Publikováno v:
ChemInform. 30
A method for the preparation of both enantiomers of tert-butyl(methyl)phenylsilane 2 is presented. Racemic tert-butyl(methyl)phenylsilyl chloride 3 was allowed to react with (R)-(−)-2-amino-1-butanol 4 to give hydrochloride 5. Diastereomer separati
Publikováno v:
ChemInform. 33
Reactions of representative tosylhydrazones of aldehydes and ketones with α-metalated sulfones were examined in order to develop a practical olefination method. Treatment of aldehyde tosylhydrazone 2 with an excess of α-lithiated methyl phenyl or d
Publikováno v:
ChemInform. 40
Aromatic fluorinated hydrocarbons, used as solvents for olefinmetathesis reactions, catalysed by standard commercially available Ru precatalysts, allow substantially higher yields to be obtained, especially of challenging substrates, including natura