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Enantioselective Synthesis of anti-β-Substituted γ,δ-Unsaturated Amino Acids: A Highly Selective Asymmetric Thio-Claisen Rearrangement.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Liu, Zhihua Qu, Hongchang Gu, Xuyuan Min, Byoung Jun Nyberg, Joel Hruby, Victor J. |
| Copyright Year | 2009 |
| Abstract | General Information All starting materials and reagents were purchased from Sigma-Aldrich and used without further purification unless ortherwise noted. Dried THF was obtained from distillation over sodium and benzophenone. Dried methylene chloride was obtained from distillation over CaH2. H and C NMR spectra were acquired on a Varian Unity300 (300 MHz and 75 MHz, respectively), Bruker DRX500 (500 MHz and 125 MHz, respectively) or Varian Inova 600 (600 MHz and 150 MHz, respectively) spectrometers; CDCl3 or TMS is used as internal standard for reporting chemical shift values. IR spectra were recorded on a Nicolet Impact 410 IR spectrometer. HPLC analysis was obtained with a Chiralpak AD RH column (150 × 4.6 mm) on an HP 1100 HPLC machine or Shimadzu SCL-10A HPLC machine. Mass spectra were obtained from Mass Spectrometry Facility, Department of Chemistry, University of Arizona. Flash column chromatography was performed using silica gel 60 from the EM Science as the packing material. TLC was performed with plates (Silica Gel 60 F254) purchased from the EMD Chemicals and were visualized by UV and KMnO4 stain. |
| File Format | PDF HTM / HTML |
| DOI | 10.1002/chin.200904186 |
| Volume Number | 40 |
| Alternate Webpage(s) | http://europepmc.org/articles/PMC2654228/bin/NIHMS86277-supplement-1_si_001.pdf |
| Alternate Webpage(s) | https://doi.org/10.1002/chin.200904186 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
