Tributylphosphine → HCID 23298307, compound

HRID 1953675Notes

Reaction equation

HRID 1953675 reaction equation
[N:1]1([CH2:10][CH2:11][OH:12])[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[CH2:3][CH2:2]1.O[C:14]1[CH:46]=[CH:45][C:17]([CH2:18][CH:19]2[S:23][C:22](=[O:24])[N:21]([C:25]([C:38]3[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=3)([C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=3)[C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)[C:20]2=[O:44])=[CH:16][CH:15]=1.C(P(CCCC)CCCC)CCC.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>O1CCCC1>[N:1]1([CH2:10][CH2:11][O:12][C:14]2[CH:46]=[CH:45][C:17]([CH2:18][CH:19]3[S:23][C:22](=[O:24])[N:21]([C:25]([C:38]4[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=4)([C:32]4[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=4)[C:26]4[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=4)[C:20]3=[O:44])=[CH:16][CH:15]=2)[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[CH2:3][CH2:2]1

Participants

6

Reactant 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 28181265-(4-Hydroxybenzyl)-3-triphenylmethylthiazolidine-2,4-dioneHCID 232983052-(2,3-dihydro-1H-indol-1-yl)ethan-1-ol

Product 1

HCID 23298307HCID 23298307, compoundYield 59%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A procedure similar to that described in Preparation 4 was repeated, except that 240 mg of 2-(indolin-1-yl)-ethanol (prepared as described in Preparation 9), 690 mg of 5-(4-hydroxybenzyl)-3-triphenylmethylthiazolidine-2,4-dione, 0.37 ml of tributylphosphine, 370 mg of 1,1'-(azodicarbonyl)dipiperidine and 5 ml of anhydrous tetrahydrofuran were used, to give 530 mg of the title compound having Rf=0.88 (on silica gel thin layer chromatography using a 2:1 by volume mixture of hexane and ethyl acetate as the developing solvent).

Workup

  1. customA procedure similar to that described in Preparation 4

Sources & evidence

ORD record
ord-5a32094489cb45bebd22993f61a9521a
Source dataset
uspto-grants-2000_09
Patent number
US06117893

Reaction notes

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