Zobrazeno 1 - 10 of 55 pro vyhledávání: '"B. Dikic"'
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(2 R *, S S *)- N -Phenyl- N -(2-N′- Tert -Butyldiphenylsilyl- S -Phenylsulfonimidoyl-1-Phenyl)Ethylamine
Autor: B. Dikic, Brian W. Skelton, Stephen G. Pyne, Allan H. White
Publikováno v: Sulfur Letters. 25:63-66
The crystal structure of (2 R *, S S *)- N -phenyl- N -(2- N '- tert -butyldiphenylsilyl- S -phenylsulfonimidoyl)-1-phenyl)-ethylamine (C 36 H 38 N 2 OSSi) is reported, thus confirming the relative stereochemistry of this molecule.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8f89b541d53dbc4fa4d0ad7c973b8a15
https://doi.org/10.1080/02786110211432
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3
ChemInform Abstract: Highly exo-Diastereoselective Diels-Alder Reactions of (2S)-N-Benzoyl- 2-tert-butyl-4-methylene-1,3-oxazolidin-5-one
Autor: B. Dikic, Allan H. White, Stephen G. Pyne, Peter A. Gordon, Brian W. Skelton
Publikováno v: ChemInform. 23
(2S)-N-Benzoyl-2-tert-butyl-4-methylene-1,3-oxazolidin-5-one undergoes highly exo-diastereoselective Diels–Alder reactions with cyclopentadiene and cyclohexa-1,3-diene.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::58eea926323881d0f988d60e19110b70
https://doi.org/10.1002/chin.199217051
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6
ChemInform Abstract: Asymmetric Synthesis of Chiral Cyclic Amino Acids by Diels-Alder Reactions of (2S)- and (2R)-4-Methyleneoxazolidin-5-ones
Autor: Brian W. Skelton, Stephen G. Pyne, P. A. Gordon, B. Dikic, Allan H. White
Publikováno v: ChemInform. 24
The synthesis of chiral (2S)- and (2R)-4-methyleneoxazolidin-5-ones, in high enantiomeric purity from (S)-S- methylcysteine, and their highly exo-selective Diels -Alder reactions with cyclic dienes are described. (1R,2S,4S)-2-Aminobicyclo[2.2.1]hepta
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ed0d26b8654d0ff6e553e7b2f78b4f80
https://doi.org/10.1002/chin.199320055
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8
Chiral sulfur compounds. II. Diastereoselective additions of (R)-(+)-methyl p-tolyl sulfoxide anion to imines. Asymmetric synthesis of (R)-(+)-tetrahydropalmatine
Autor: Stephen G. Pyne, B. Dikic
Publikováno v: The Journal of Organic Chemistry. 55:1932-1936
The stereochemistry of the products arising from the kinetically controlled addition of (R(-(+)-methyl p-tolyl sulfoxide anion to imines can be readily rationalized by assuming a chairlike transition state. This method allows for the construction of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::292b1eea9e459392d91873260bf9349a
https://doi.org/10.1021/jo00293a045
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9
Diastereoselective additions of lithiated N-tertbutyldiphenylsilyl- S-methyl-S-phenylsulfoximine to imines and aldehydes
Autor: Stephen G. Pyne, B. Dikic
Publikováno v: Tetrahedron Letters. 31:5231-5234
Lithiated N-tert-butyldiphenylsilyl-S-methyl-S-phenylsulfoximine undergoes 1,2 addition to imines (R 1 CHNPh) and aldehydes (RCHO) to give diastereomeric adducts. The diastereoselection of the former reactions is dependent on the steric demand of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8f9d772fed12b3d571de4ccf8fad9a9c
https://doi.org/10.1016/s0040-4039(00)97851-1
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10
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