Triphenylphosphine → Ethyl 2-[4-[((3S)-1-tert-butoxycarbonyl-3-pyrrolidinyl)oxy]phenyl]-2-oxoacetate

HRID 1738671

反応式

HRID 1738671 の反応式
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([C:8](=[O:14])[C:9]([O:11][CH2:12][CH3:13])=[O:10])=[CH:4][CH:3]=1.[C:15]([O:19][C:20]([N:22]1[CH2:26][CH2:25][C@@H:24](O)[CH2:23]1)=[O:21])([CH3:18])([CH3:17])[CH3:16].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O>C(OCC)(=O)C.O1CCCC1>[C:15]([O:19][C:20]([N:22]1[CH2:26][CH2:25][C@H:24]([O:1][C:2]2[CH:3]=[CH:4][C:5]([C:8](=[O:14])[C:9]([O:11][CH2:12][CH3:13])=[O:10])=[CH:6][CH:7]=2)[CH2:23]1)=[O:21])([CH3:18])([CH3:16])[CH3:17]

参加物

7

反応物 4

HCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 6544479tert-Butyl (3R)-3-hydroxypyrrolidine-1-carboxylateHCID 11715332Ethyl 2-(4-hydroxyphenyl)-2-oxoacetate

生成物 1

HCID 10316641Ethyl 2-[4-[((3S)-1-tert-butoxycarbonyl-3-pyrrolidinyl)oxy]phenyl]-2-oxoacetate収率 75.1%

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To 40 ml of tetrahydrofuran were dissolved 1.8 g of ethyl 2-(4-hydroxyphenyl)-2-oxoacetate, 1.74 g of (3R)-1-tert-butoxycarbonyl-3-hydroxypyrrolidine and 2.92 g of triphenylphosphine. At room temperature, 1.94 g of diethyl azodicarboxylate was added to the above solution, and the resulting mixture was stirred for 18 hours. After distilling off the solvent, the residue thus obtained was dissolved in ethyl acetate, and the solution was washed with water, and then dried. Thereafter, the solvent was distilled-off, and the resulting residue was purified by silica gel column chromatography using a toluene/chloroform mixture as an eluant, thereby obtaining 2.53 g of the title compound as a viscous yellow oil.

後処理

  1. distillationAfter distilling off the solvent
  2. customthe residue thus obtained
  3. washthe solution was washed with water
  4. customdried
  5. customthe resulting residue was purified by silica gel column chromatography

出典と根拠

ORDレコード
ord-07fb540c4d3843f9a37e29578f463dce
出典データセット
uspto-grants-1999_10
特許番号
US05962695

関連ノート

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