Triphenylphosphine → HCID 86677439, compound

HRID 2364953Notes

Reaction equation

HRID 2364953 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH2:9][C@@H:10]3[N:16]([CH:17]=2)[C:15](=[O:18])[C:14]2[CH:19]=[C:20]([O:61][CH3:62])[C:21]([O:23][CH2:24][CH2:25][CH2:26][O:27][C:28]4[C:58]([O:59][CH3:60])=[CH:57][C:31]5[C:32](=[O:56])[N:33]6[CH:48]=[C:47](S(C(F)(F)F)(=O)=O)[CH2:46][C@H:34]6[C:35](=[O:45])[N:36]([CH2:37][O:38][CH2:39][CH2:40][Si:41]([CH3:44])([CH3:43])[CH3:42])[C:30]=5[CH:29]=4)=[CH:22][C:13]=2[N:12]([CH2:63][O:64][CH2:65][CH2:66][Si:67]([CH3:70])([CH3:69])[CH3:68])[C:11]3=[O:71])=[CH:4][CH:3]=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[C:91]([Si:93]([CH3:96])([CH3:95])[CH3:94])#[CH:92]>N1CCCCC1.[Cu]I.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH2:9][C@@H:10]3[N:16]([CH:17]=2)[C:15](=[O:18])[C:14]2[CH:19]=[C:20]([O:61][CH3:62])[C:21]([O:23][CH2:24][CH2:25][CH2:26][O:27][C:28]4[C:58]([O:59][CH3:60])=[CH:57][C:31]5[C:32](=[O:56])[N:33]6[CH:48]=[C:47]([C:92]#[C:91][Si:93]([CH3:96])([CH3:95])[CH3:94])[CH2:46][C@H:34]6[C:35](=[O:45])[N:36]([CH2:37][O:38][CH2:39][CH2:40][Si:41]([CH3:44])([CH3:43])[CH3:42])[C:30]=5[CH:29]=4)=[CH:22][C:13]=2[N:12]([CH2:63][O:64][CH2:65][CH2:66][Si:67]([CH3:70])([CH3:69])[CH3:68])[C:11]3=[O:71])=[CH:4][CH:3]=1

Participants

7

Reactant 3

HCID 11776TriphenylphosphineHCID 66111TrimethylsilylacetyleneHCID 86656479HCID 86656479, compound

Product 1

HCID 86677439HCID 86677439, compound

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418397HCID 178418397, compoundCatalystHCID 8082PiperidineSolvent

Procedure

A mixture of 9 (0.150 g, 0.14 mmol), CuI (0.003 g, 0.014 mmol, 0.1 eq), Pd(PPh3)4 (0.0162 g, 0.014 mmol, 0.1 eq) and PPh3 (0.007 g, 0.028 mmol, 0.2 eq) was dissolved in piperidine (9 mL) in presence of molecular sieves under an argon atmosphere. Ethynyltrimethylsilane (0.06 ml, 0.42 mmol, 3 eq) was added to the mixture at 70° C. and the reaction mixture was allowed to stir overnight. The solvent was removed by rotary evaporation under reduced pressure and the resulting brown solid purified by flash column chromatography (silica gel, 90% EtOAc, 10% hexane). Compound 27 was obtained as an orange solid (0.043 g, 30%); Rf 0.69 [EtOAc]; LC-MS (5 min) 4.28 min, ES+1008.28.

Workup

  1. customThe solvent was removed by rotary evaporation under reduced pressure
  2. customthe resulting brown solid purified by flash column chromatography (silica gel, 90% EtOAc, 10% hexane)

Sources & evidence

ORD record
ord-52055656f2b14ee7b9ebd44d1bdc7cee
Source dataset
uspto-grants-2014_04
Patent number
US08697688B2

Reaction notes

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