tert-Butyl (2R,3S)-(-)-6-oxo-2,3-diphenyl-4-morpholinecarboxylate

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tert-Butyl (2R,3S)-(-)-6-oxo-2,3-diphenyl-4-morpholinecarboxylate Basic information
Product Name:tert-Butyl (2R,3S)-(-)-6-oxo-2,3-diphenyl-4-morpholinecarboxylate
Synonyms:CIVENTICHEM CV-2653;CIVENTICHEM CV-2654;TERT-BUTYL (2R,3S)-(-)-6-OXO-2,3-DIPHENYL-4-MORPHOLINECARBOXYLATE;N-TERT-BUTOXYCARBONYL-(2R,3S)-(-)-6-OXO-2,3-DIPHENYL-4-MORPHOLINE;N-BOC(2R, 3S)-(-)-6-OXO-2,3-DIPHENYL-4-MORPHOLINE CARBOXYLATE;tert-butyl (2R,3S)-(-)-6-oxo-2,3-diphenyl-4-morph;TERT-BUTYL (2R,3S)-(-)-6-OXO-2,3-DIPHENY L-4-MORPHOLINECARBOXYLATE, 99% (99% EE);(2R,3S)-6-Oxo-2,3-diphenyl-morpholine-4-carboxylic acid tert-butyl ester
CAS:112741-49-8
MF:C21H23NO4
MW:353.41
EINECS:
Product Categories:API intermediates;Chiral Building Blocks;Heterocyclic Building Blocks;Morpholines
Mol File:112741-49-8.mol
tert-Butyl (2R,3S)-(-)-6-oxo-2,3-diphenyl-4-morpholinecarboxylate Structure
tert-Butyl (2R,3S)-(-)-6-oxo-2,3-diphenyl-4-morpholinecarboxylate Chemical Properties
Melting point 206 °C (dec.)(lit.)
Boiling point 509.6±50.0 °C(Predicted)
alpha -87 º (c=5.5 in methylene chloride)
density 1.175±0.06 g/cm3(Predicted)
storage temp. 2-8°C
solubility Acetone (Slightly, Heated, Sonicated), Chloroform (Slightly), DMSO (Slightly, Sonicated)
pka-3.28±0.60(Predicted)
form Solid
color White to Off-White
Optical Rotation[α]25/D 87°, c = 5.5 in methylene chloride
InChIInChI=1S/C21H23NO4/c1-21(2,3)26-20(24)22-14-17(23)25-19(16-12-8-5-9-13-16)18(22)15-10-6-4-7-11-15/h4-13,18-19H,14H2,1-3H3/t18-,19+/m0/s1
InChIKeyMRUKRSQUUNYOFK-RBUKOAKNSA-N
SMILESN1(C(OC(C)(C)C)=O)CC(=O)O[C@H](C2=CC=CC=C2)[C@@H]1C1=CC=CC=C1
Safety Information
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 26-37/39
WGK Germany 3
HS Code 2934999090
Storage Class11 - Combustible Solids
Hazard ClassificationsEye Irrit. 2
Skin Irrit. 2
STOT SE 3
MSDS Information
ProviderLanguage
SigmaAldrich English
tert-Butyl (2R,3S)-(-)-6-oxo-2,3-diphenyl-4-morpholinecarboxylate Usage And Synthesis
Chemical Propertiestert-Butyl (2R,3S)-(-)-6-oxo-2,3-diphenyl-4-morpholinecarboxylate is Off-white Solid
UsesTert-Butyl (2R,3S)-(-)-6-oxo-2,3-diphenyl-4-morpholinecarboxylate is a reactant used in the preparation of (-)-Jorumycin, (-)-Renieramycin G, 3-epi-Jorumycin, and 3-epi-Renieramycin G and colla gen cross-link pyridinolines.
Uses(2R,3S)-6-Oxo-2,3-diphenyl-4-morpholinecarboxylic Acid tert-Butyl Ester is a reactant used in the preparation of (-)-Jorumycin, (-)-Renieramycin G, 3-epi-Jorumycin, and 3-epi-Renieramycin G and collagen cross-link pyridinolines.
Synthesis
N-(tert-Butyloxycarbonyl)-N-[(1S,2R)-2-hydroxy-1,2-diphenylethyl]-glycine Ethyl Ester

112741-70-5

tert-Butyl (2R,3S)-(-)-6-oxo-2,3-diphenyl-4-morpholinecarboxylate

112741-49-8

N-Boc-substituted diphenylamino alcohol (1.9 g, 4.2 mmol) was dissolved in toluene (25 mL), p-TsOH (p-TsOH, 70 mg, 0.42 mmol) was added, and the reaction was heated and refluxed at 120 °C overnight. Upon completion of the reaction, it was cooled to room temperature and a solid was precipitated. The solid was collected by filtration, washed with saturated aqueous sodium chloride solution, the organic phase was separated, dried over anhydrous sodium sulfate, filtered and concentrated. The yellow solid obtained was recrystallized by anhydrous ethanol (20 mL) to give a white solid. After filtration and drying by rotary evaporation, 1.22 g (2R,3S)-N-tert-butoxycarbonyl-2,3-diphenylmorpholin-6-one was obtained as a white solid in 85% yield.

References[1] Patent: CN104945345, 2017, B. Location in patent: Paragraph 0105; 0107; 0116; 0118
[2] Journal of the American Chemical Society, 1988, vol. 110, # 5, p. 1547 - 1557
[3] Synlett, 2005, # 4, p. 693 - 696
[4] Organic Syntheses, 2003, vol. 80, p. 18 - 30
Tag:tert-Butyl (2R,3S)-(-)-6-oxo-2,3-diphenyl-4-morpholinecarboxylate(112741-49-8) Related Product Information
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