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1
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0028128673
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Baldwin, J. E.; Chan, R. Y.; Sutherland, J. D. Tetrahedron Lett. 1994, 35, 5519.
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(1994)
Tetrahedron Lett
, vol.35
, pp. 5519
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Baldwin, J.E.1
Chan, R.Y.2
Sutherland, J.D.3
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4
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50849087128
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Subsequent to our demonstration that alkyl phosphates can act as organocatalysts of the three-component Ugi reaction ref. 2, List has identified phenyl phosphinic acid 'as the best catalyst for this perfectly atom-economic reaction, thus introducing a new motif for organocatalysis, Pan, S. C, List, B. Angew. Chem. Int. Ed. 2008, 47, 3622
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Subsequent to our demonstration that alkyl phosphates can act as organocatalysts of the three-component Ugi reaction (ref. 2), List has identified phenyl phosphinic acid 'as the best catalyst for this perfectly atom-economic reaction, thus introducing a new motif for organocatalysis': Pan, S. C.; List, B. Angew. Chem. Int. Ed. 2008, 47, 3622.
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5
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51149124156
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Glycolaldehyde phosphate disodium salt 8 (55 mg, 0.3 mmol) was dissolved in D2O (3 mL) and the pD was adjusted to 6 using NaOD-DCl solution. Methyl isonitrile (18 μL 0.3 mmol) was then added and the solution stirred at r.t. overnight. Data for 11 1HNMR (500 MHz, D 2O, δ, 2.73 (s, 3 H, CH3, 3.96 (ddd, J, 11.4, 7.3, 5.0 Hz, 1 H, CHHOP, 4.02 (ddd, J, 11.0, 6.3, 2.8 Hz, 1 H, CHHOP, 4.25 (app. t, J, 4.1, 3.8 Hz, 1 H, CHOH, 13C NMR (75 MHz, D2O, δ, 25.6 (CH3, 66.3 (CH2OP, 71.6 (CHOH, 174.3 (CONHCH3, 31P NMR (81 MHz, D2O, δ, 1.32 t, J, 6.4 Hz
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2O): δ = 1.32 (t, J = 6.4 Hz).
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7
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0004874129
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(b) Ferris, J. P.; Goldstein, G.; Beaulieu, D. J. J. Am. Chem. Soc. 1970, 92, 6598.
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(1970)
J. Am. Chem. Soc
, vol.92
, pp. 6598
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Ferris, J.P.1
Goldstein, G.2
Beaulieu, D.J.3
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8
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0034600774
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Krishnamurthy, R.; Guntha, S.; Eschenmoser, A. Angew. Chem. Int. Ed. 2000, 39, 2281.
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(2000)
Angew. Chem. Int. Ed
, vol.39
, pp. 2281
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Krishnamurthy, R.1
Guntha, S.2
Eschenmoser, A.3
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9
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51149097967
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Glycolaldehyde 19 (15 mg, 0.25 mmol) and disodium cyanovinylphosphate (18, 145 mg, 0.75 mmol) were dissolved in D 2O (3 mL) and the pD was adjusted to 6 using NaOD-DCl solution. Methyl isonitrile (14 μL, 0.25 mmol) was then added and the solution stirred at r.t. overnight. Data for 20 1H NMR (500 MHz, D 2O, δ, 2.74 (s, 3 H, CH3, 3.81 (dd, J, 12.0, 3.2 Hz, 1 H, CHHOH, 3.85 (dd, J, 12.3, 2.8 Hz, 1 H, CHHOH, 4.44 (app. dt, J, 9.6, 3.2, 2.8 Hz, 1 H, CHOP, 13C NMR (75 MHz, D2O, δ, 25.7 (CH3, 63.3 (CH2OH, 75.2 (CHOP, 31P NMR (81 MHz, D 2O, δ, 2.14 (d, J, 8.9 Hz, ESI-MS: m/z, 198 (87, M, HRMS: m/z calcd for C4H 9O6NP [M, 198.0173; found: 198.0181. Data for 21 1H NMR 500 MHz, D2O
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+].
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10
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51149116871
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1H NMR analysis because of (partial) hydrogen-deuterium exchange.
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1H NMR analysis because of (partial) hydrogen-deuterium exchange.
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