190970-57-1Relevant articles and documents
Preparation method of (S)-4-phenyl-2-oxazolidinone
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, (2021/03/18)
The invention discloses a preparation method for synthesizing (S)-4-phenyl-2-oxazolidinone, and belongs to the technical field of organic synthesis. The preparation method comprises the following steps: reducing N-Boc-L-phenylglycine with a borane reagent to obtain N-Boc-L-phenylglycinol, and carrying out a ring closing reaction under the action of a catalyst to obtain (S)-4-phenyl-2-oxazolidinone. The product reacts with sulfur powder and ammonium sulfide or ammonium polysulfide to obtain (S)-4-phenyl oxazolidine-2-thioketone. The method avoids the use of cytotoxic reagents or solvents, has the advantages of accessible raw materials, simple operation and the like, conforms to green chemistry, and has potential industrial amplification prospects.
Synthesis of new C3 symmetric amino acid- and aminoalcohol-containing chiral stationary phases and application to HPLC enantioseparations
Yu, Jeongjae,Armstrong, Daniel W.,Ryoo, Jae Jeong
, p. 74 - 84 (2017/12/26)
We recently reported a new C3-symmetric (R)-phenylglycinol N-1,3,5-benzenetricarboxylic acid-derived chiral high-performance liquid chromatography (HPLC) stationary phase (CSP 1) that demonstrated better results as compared to a previously described N-3,5-dintrobenzoyl (DNB) (R)-phenylglycinol-derived CSP. Over a decade ago, (S)-leucinol, (R)-phenylglycine, and (S)-leucine derivatives were used as the starting materials of 3,5-DNB-based Pirkle-type CSPs for chiral separation. In this study, three new C3-symmetric CSPs (CSP 2, 3, and 4) were prepared by combining the ideas and results mentioned above. Here we describe the synthetic procedures and applications of the new C3-symmetric CSPs (CSP 2–CSP 4).
Liquid Chromatographic Resolution of Racemic 2-Oxazolidinones and their Analogs on Seven Pirkle-Type Chiral Stationary Phases
Yu, Jeong Jae,Hyun, Myung Ho,Armstrong, Daniel W.,Breitbach, Zachary S.,Ryoo, Jae Jeong
, p. 723 - 726 (2015/07/20)
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