反応 #1519076

反応方程式

alanine

tris(hydroxymethyl)phosphine

174.09

→

2-[({Bis-[(1-carboxy-ethylamino)-methyl]-phosphanyl}-methyl)-amino]-propionic acid

収率 95.0%

溶媒

water

water

反応条件

後処理

1. 1
   その他The solvent was removed in vacuo
2. 2
   その他to obtain a solid
3. 3
   洗浄The residue was washed in methanol (3×15 mL)
4. 4
   その他dried in vacuo
5. 5
   その他to yield the analytically pure compound (THPAL) in 95% yield (2.58 g) as a white solid

実験手順

As shown in Scheme II, alanine (2.15 g, 24.19 mmol) in 25 mL of distilled water was added to tris(hydroxymethyl)phosphine (1.00 g, 8.06 mmol) in water (15 mL) at 25° C. The reaction was stirred under dry nitrogen for one hour. The solvent was removed in vacuo to obtain a solid. The residue was washed in methanol (3×15 mL) and dried in vacuo to yield the analytically pure compound (THPAL) in 95% yield (2.58 g) as a white solid; ESI/MS calcd for C12H24N3O6P [M+H]+ 337.31, found 338.20; Anal. (calcd) for C12H24N3O6P: C, 42.73, H, 7.17. N 12.46. Found: C, 43.21, H, 7.54, N, 11.76; 1H NMR (D2O, 300 MHz): δ1.37 (d, 9H, —CH(CH3), 3.47 (d, 6H, P—(CH2)), 3.65 (q, 3H, —CH(CH3); 13C NMR (D2O, 75 MHz): δ14.84 (s, —CH(CH3), 42.65 (d, P—CH2, 1JP-C=12.83 Hz), 59.36 (d, CH(CH3), 3JP-C=5.30 Hz), 174.09 (s, —COOH); 31P{1H} NMR (D2O, 121.5 MHz): −39.50 (s).

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