Chlorotrimethylsilane → HCID 178474807, compound

HRID 1106112Notes

Reaction equation

HRID 1106112 reaction equation
[C:1]([NH:4][CH2:5][CH2:6][C:7](O)=[O:8])(=[O:3])[CH3:2].CN1CCOCC1.ClC(OCC(C)C)=O.[NH2:25][C:26]1[CH:31]=[CH:30][C:29]([C:32]2[N:37]=[C:36]([OH:38])[C:35]([C:39]([OH:41])=[O:40])=[CH:34][N:33]=2)=[CH:28][CH:27]=1.C(N(CC)CC)C.C[Si](Cl)(C)C>ClCCl.C(#N)C>[C:1]([NH:4][CH2:5][CH2:6][C:7]([NH:25][C:26]1[CH:27]=[CH:28][C:29]([C:32]2[N:37]=[C:36]([OH:38])[C:35]([C:39]([OH:41])=[O:40])=[CH:34][N:33]=2)=[CH:30][CH:31]=1)=[O:8])(=[O:3])[CH3:2]

Participants

9

Reactant 6

HCID 6397ChlorotrimethylsilaneHCID 79724-MethylmorpholineHCID 8471TriethylamineHCID 62365Isobutyl chloroformateHCID 76406N-Acetyl-beta-alanineHCID 178507442HCID 178507442, compound

Product 1

HCID 178474807HCID 178474807, compoundYield 96.3%

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 6344DichloromethaneSolvent

Conditions

Temperature
-10 °C

Procedure

A solution of 4.6 g (35 mmol) of N-acetyl-beta-alanine, 100 ml acetonitrile, and 3.9 ml (35 mmol) of N-methylmorpholine is stirred at -15° C. and 5.0 ml (38.5 mmol) of isobutyl chloroformate is added. After 30 minutes at -15° C. a solution prepared from 4.05 g (17.5 mmol) of 2-(4-aminophenyl)-4-hydroxy-5-pyrimidine carboxylic acid, 7.35 ml (52.5 mmol) of triethylamine, and 7.96 ml (62.7 mmol) of trimethylsilyl chloride in 100 ml of dichloromethane is added and the mixture stirred at -10° C. for 1 hour and at room temperature overnight. The mixture is evaporated to near dryness in vacuo and treated with 200 ml of water. The product is precipitated by acidifying to pH 2.0 and is filtered, washed with water, isopropanol, ether, and dried to give 5.8 g of 2-[4-(N-acetyl-beta-alanylamino)phenyl]-4-hydroxy-5-pyrimidine carboxylic acid.

Workup

  1. additionis added
  2. customThe mixture is evaporated
  3. additiontreated with 200 ml of water
  4. customThe product is precipitated
  5. filtrationis filtered
  6. washwashed with water, isopropanol, ether
  7. customdried

Sources & evidence

ORD record
ord-2899a12b1d5040b5941ba4b0bcb1bad2
Source dataset
uspto-grants-1982_01
Patent number
US04311699

Reaction notes

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