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Triphenylphosphine → Ethyl 4'-(4-chlorobutoxy)-3'-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphth-2-yl)biphenyl-4-carboxylate

HRID 253495
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Reaktionsgleichung

Reaktionsgleichung von HRID 253495
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[CH:12][C:11]([C:14]([O:16][CH2:17][CH3:18])=[O:15])=[CH:10][CH:9]=2)=[CH:4][C:3]=1[C:19]1[CH:28]=[CH:27][C:26]2[C:25]([CH3:30])([CH3:29])[CH2:24][CH2:23][C:22]([CH3:32])([CH3:31])[C:21]=2[CH:20]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OC(C)C)=O)=NC(OC(C)C)=O.[Cl:66][CH2:67][CH2:68][CH2:69][CH2:70]O>O1CCCC1.O>[Cl:66][CH2:67][CH2:68][CH2:69][CH2:70][O:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:9]=[CH:10][C:11]([C:14]([O:16][CH2:17][CH3:18])=[O:15])=[CH:12][CH:13]=2)=[CH:4][C:3]=1[C:19]1[CH:28]=[CH:27][C:26]2[C:25]([CH3:30])([CH3:29])[CH2:24][CH2:23][C:22]([CH3:31])([CH3:32])[C:21]=2[CH:20]=1
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Komponenten

7

Edukt 4

HCID 11776TriphenylphosphineHCID 135694-Chloro-1-butanolHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 57552328Ethyl 4'-hydroxy-3'-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphth-2-yl)biphenyl-4-carboxylate

Produkt 1

HCID 66856889Ethyl 4'-(4-chlorobutoxy)-3'-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphth-2-yl)biphenyl-4-carboxylate
Ausbeute 74,5 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

10 g (23 mmol) of ethyl 4′-hydroxy-3′-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphth-2-yl)biphenyl-4-carboxylate are dissolved in 400 ml of tetrahydrofuran. 9.2 g (35 mmol) of triphenylphosphine and 6.9 ml (35 mmol) of diisopropyl azodicarboxylate are added and the reaction medium is stirred at room temperature for 30 minutes. 2.8 ml (28 mmol) of 4-chlorobutanol are then added, and the medium is kept stirring for 12 hours, and then poured into 500 ml of water and extracted with ethyl acetate. The residue obtained is purified by chromatography on silica gel (eluent: 80/20 heptane/ethyl acetate). 8.9 g of ethyl 4′-(4-chlorobutoxy)-3′-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphth-2-yl)biphenyl-4-carboxylate are obtained in the form of a colorless oil (yield=73%).

Aufarbeitung

  1. stirringthe medium is kept stirring for 12 hours
  2. extractionextracted with ethyl acetate
  3. customThe residue obtained
  4. customis purified by chromatography on silica gel (eluent: 80/20 heptane/ethyl acetate)

Quellen und Nachweise

ORD-Eintrag
ord-d9828bce845d42579e1a48b8a3b4058d
Quelldatensatz
uspto-grants-2011_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07872026B2

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