Tributylvinyltin → HCID 58109276, compound

HRID 2037548Notes

Reaction equation

HRID 2037548 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([C@@H:8]([N:10]2[CH2:15][CH2:14][C@:13]([CH2:22][CH2:23][CH2:24][OH:25])([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)[O:12][C:11]2=[O:26])[CH3:9])=[CH:4][CH:3]=1.[CH2:27]([Sn](CCCC)(CCCC)C=C)[CH2:28]CC>C1(C)C=CC=CC=1.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>[OH:25][CH2:24][CH2:23][CH2:22][C@@:13]1([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[O:12][C:11](=[O:26])[N:10]([C@H:8]([C:5]2[CH:6]=[CH:7][C:2]([CH:27]=[CH2:28])=[CH:3][CH:4]=2)[CH3:9])[CH2:15][CH2:14]1

Participants

5

Reactant 2

HCID 81998TributylvinyltinHCID 59532368(R)-3-((S)-1-(4-bromophenyl)ethyl)-6-(3-hydroxypropyl)-6-phenyl-1,3-oxazinan-2-one

Product 1

HCID 58109276HCID 58109276, compoundYield 68.4%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 1140TolueneSolvent

Procedure

A mixture of (R)-3-((S)-1-(4-bromophenyl)ethyl)-6-(3-hydroxypropyl)-6-phenyl-1,3-oxazinan-2-one (3 g, 7.2 mmol), tributyl(vinyl)stannane (2.73 g, 8.64 mmol) and Pd(PPh3)4 (1 g, 0.87 mmol) in toluene (100 mL) was heated to reflux for 3 h. The reaction mixture was filtered, and the filtrate was concentrated to give the crude product, which was purified by column chromatography to afford (R)-6-(3-hydroxypropyl)-6-phenyl-3-((S)-1-(4-vinylphenyl)ethyl)-1,3-oxazinan-2-one (1.8 g, 68%). 1H NMR (CDCl3): 1.32 (m, 1H), 1.46 (m, 3H), 1.65 (m, 1H), 1.84-2.22 (m, 5H), 2.78 (m, 1H), 3.51 (m, 2H), 5.12 (m, 1H), 5.59 (m, 2H), 6.54 (m, 1H), 6.78 (m, 1H), 7.07 (m, 1H), 7.16 (m, 1H), 7.18-7.32 (m, 6H).

Workup

  1. temperaturewas heated
  2. temperatureto reflux for 3 h
  3. filtrationThe reaction mixture was filtered
  4. concentrationthe filtrate was concentrated
  5. customto give the crude product, which
  6. customwas purified by column chromatography

Sources & evidence

ORD record
ord-57e308c3bcc2403f9f48a26cdfa39435
Source dataset
uspto-grants-2013_11
Patent number
US08575156B2

Reaction notes

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