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[ CAS No. 926291-64-7 ]

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2D
Chemical Structure| 926291-64-7
Chemical Structure| 926291-64-7
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Product Details of [ 926291-64-7 ]

CAS No. :926291-64-7MDL No. :MFCD25977349
Formula : C13H18ClNO3 Boiling Point : 405.9±40.0°C at 760 mmHg
Linear Structure Formula :-InChI Key :N/A
M.W :271.74Pubchem ID :59536757
Synonyms :

Computed Properties of [ 926291-64-7 ]

TPSA : 58.6 H-Bond Acceptor Count : 3
XLogP3 : 2.4 H-Bond Donor Count : 2
SP3 : 0.46 Rotatable Bond Count : 5

Safety of [ 926291-64-7 ]

Signal Word:WarningClass:N/A
Precautionary Statements:P261-P305+P351+P338UN#:N/A
Hazard Statements:H302-H315-H319-H335Packing Group:N/A
GHS Pictogram:

Application In Synthesis of [ 926291-64-7 ]

  • Upstream synthesis route of [ 926291-64-7 ]
  • Downstream synthetic route of [ 926291-64-7 ]

[ 926291-64-7 ] Synthesis Path-Upstream   1~1

  • 1
  • [ 4248-19-5 ]
  • [ 2039-85-2 ]
  • [ 926291-64-7 ]
YieldReaction ConditionsOperation in experiment
51%
Stage #1: With sodium hydroxide; tert-butyl hypochloride In propan-1-ol at 15℃; for 0.166667 h;
Stage #2: With (DHQD)2PHAL In propan-1-ol at 0℃;
To a stirred solution of t-butyl carbamate (2.0 equivalents) in n-propanol (4 L/mol) in a cold-water bath (~ 15°C) was added IN NaOH (2.05 equivalents), and t-butyl hypochlorite (2.3 equivalents). The mixture was stirred for 10 min and then cooled to 00C. Solutions of (DHQD)2PHAL (0.02 equivalents) in n-propanol (4 L/mol), styrene (1 equivalent) in n- propanol (8 L/mol), and K2OsO4-2H2O (0.015 equivalents) were added sequentially. The mixture was stirred at 00C until the reaction was complete. The reaction was quenched by the addition of an aqueous Na2SO3 solution until any remaining green color was reduced to yellow/brown. The mixture was concentrated under reduced pressure. In a standard workup, the reaction mixture was partitioned between water and CH2Cl2. The phases were separated and the aqueous extracted with CH2Cl2. The combined organic extracts were dried (Na2SO4 or MgSO4), filtered and concentrated under reduced pressure. The crude material was purified by flash column chromatography on silica gel.; Using general procedure J, 3-chlorostyrene (28.0 g, 200 mmol) was converted to [(R)-l-(3-chloro-phenyl)-2-hydroxy-ethyl]-carbamic acid tert-butyl ester (27.9g, 51percent yield, 99percent purity by HPLC, 93.7percent ee by HPLC). 1H NMR (CD3OD) δ 3.63-3.72 (m, 2H), 4.63-4.67 (m, IH), 7.26-7.37 (m, 2H), 7.43 (s, IH).
Reference: [1] Patent: WO2007/22371, 2007, A2, . Location in patent: Page/Page column 27; 31
[2] Journal of Medicinal Chemistry, 2013, vol. 56, # 20, p. 8049 - 8065
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