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Triethylamine → (S,E)-N-(8-(tert-Butyldiphenylsilyloxy)-2-methyloct-5-en-4-yl)-P,P-diphenylphosphinic amide

HRID 1505289
Notes
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Reaction equation

HRID 1505289 reaction equation
Cl.[Si:2]([O:19][CH2:20][CH2:21]/[CH:22]=[CH:23]/[C@@H:24]([NH2:29])[CH2:25][CH:26]([CH3:28])[CH3:27])([C:15]([CH3:18])([CH3:17])[CH3:16])([C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1)[C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.CCN(CC)CC.[C:37]1([P:43](Cl)([C:45]2[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=2)=[O:44])[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1>C(Cl)Cl.Cl>[Si:2]([O:19][CH2:20][CH2:21]/[CH:22]=[CH:23]/[C@@H:24]([NH:29][P:43]([C:45]1[CH:46]=[CH:47][CH:48]=[CH:49][CH:50]=1)([C:37]1[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1)=[O:44])[CH2:25][CH:26]([CH3:27])[CH3:28])([C:15]([CH3:17])([CH3:18])[CH3:16])([C:9]1[CH:10]=[CH:11][CH:12]=[CH:13][CH:14]=1)[C:3]1[CH:4]=[CH:5][CH:6]=[CH:7][CH:8]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 73910Diphenylphosphinic chlorideHCID 53248329(S,E)-8-(tert-Butyldiphenylsilyloxy)-2-methyloct-5-en-4-amine hydrochloride

Product 1

HCID 67310501(S,E)-N-(8-(tert-Butyldiphenylsilyloxy)-2-methyloct-5-en-4-yl)-P,P-diphenylphosphinic amideYield 119.6%

Reagents, catalysts & solvents 2

HCID 313
Hydrochloric Acid
Solvent
HCID 6344DichloromethaneSolvent3×

Conditions

Temperature
0 °C

Procedure

To a solution of the amine 7 (400 mg, 1.01 mmol) in dry DCM (7 mL) were added Et3N (0.44 mL, 3.13 mmol), and then a solution of diphenylphosphinic chloride (Ph2POCl, 0.22 mL, 1.11 mmol) in dry DCM (3 mL) at 0° C. After being stirred at 0° C. for 15 min, the reaction mixture was allowed to warm to rt and stirred for 4 h, then diluted with DCM and 10% HCl. The aqueous phase was extracted with DCM and the combined organic layers were washed with sat. NaHCO3, dried (MgSO4), filtered and concentrated in vacuo to afford 720 mg of the crude title compound as a pale yellow solidified oil, which was used for the next step without further purification.

Workup

  1. customat 0° C
  2. temperatureto warm to rt
  3. stirringstirred for 4 h
  4. extractionThe aqueous phase was extracted with DCM
  5. washthe combined organic layers were washed with sat. NaHCO3
  6. dry with materialdried (MgSO4)
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-1f5751e5aee54f9096b6db438cecf4cb
Source dataset
uspto-grants-2015_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09216976B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes