HomeMCPWorkbenchSkills
HomeWorkbenchNotificationsMe
llms.txt · MCP GuidePrivacy Policy · Terms of Service · Supportv1.8.0
  1. Home
  2. /Reaction

Potassium Phosphate, Tribasic → 5-[3-(2-Ethyl-3-formylphenyl)-1,2,4-thiadiazol-5-yl]-2-(2-methylpropyl)benzonitrile

HRID 1942635
Notes
Print preview

Reaction equation

HRID 1942635 reaction equation
Br[C:2]1[N:6]=[C:5]([C:7]2[CH:8]=[CH:9][C:10]([CH2:15][CH:16]([CH3:18])[CH3:17])=[C:11]([CH:14]=2)[C:12]#[N:13])[S:4][N:3]=1.[CH2:19]([C:21]1[C:28](B2OC(C)(C)C(C)(C)O2)=[CH:27][CH:26]=[CH:25][C:22]=1[CH:23]=[O:24])[CH3:20].P([O-])([O-])([O-])=O.[K+].[K+].[K+]>CN(C)C=O.O.C(OCC)(=O)C.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>[CH2:19]([C:21]1[C:22]([CH:23]=[O:24])=[CH:25][CH:26]=[CH:27][C:28]=1[C:2]1[N:6]=[C:5]([C:7]2[CH:8]=[CH:9][C:10]([CH2:15][CH:16]([CH3:18])[CH3:17])=[C:11]([CH:14]=2)[C:12]#[N:13])[S:4][N:3]=1)[CH3:20]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 584940852-Ethyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehydeHCID 669817585-(3-Bromo-1,2,4-thiadiazol-5-yl)-2-(2-methylpropyl)benzonitrile

Product 1

HCID 584941545-[3-(2-Ethyl-3-formylphenyl)-1,2,4-thiadiazol-5-yl]-2-(2-methylpropyl)benzonitrileYield 89.2%

Reagents, catalysts & solvents 4

HCID 178418397
HCID 178418397, compound
Catalyst
HCID 962WaterSolvent
HCID 6228DimethylformamideSolvent
HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
120 °C

Procedure

To a solution of 5-(3-bromo-1,2,4-thiadiazol-5-yl)-2-(2-methylpropyl)benzonitrile (D60) (500 mg), 2-ethyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (D5) (424 mg) and tripotassium phosphate (988 mg) in N,N-dimethylformamide (DMF) (4 mL) and water (1 mL) stirred under nitrogen was added Pd(Ph3P)4 (179 mg). The mixture was sealed and heated under microwave at 120° C. for 15 min. After cooling the reaction, the mixture was diluted with ethyl acetate, washed with water, dried over sodium sulphate, concentrated and purified by column chromatography to give 5-[3-(2-ethyl-3-formylphenyl)-1,2,4-thiadiazol-5-yl]-2-(2-methylpropyl)benzonitrile (D63) (520 mg). δH (CDCl3, 400 MHz): 1.00 (6H, d), 1.37 (3H, t), 2.81 (2H, d), 3.38 (2H, q), 4.11 (1H, m), 7.48 (2H, m), 8.02 (1H, d), 8.14 (2H, m), 8.30 (1H, d), 10.48 (1H, s). MS (ES): C22H21N3OS requires 375. found 376.1 (M+H+).

Workup

  1. customThe mixture was sealed
  2. temperatureAfter cooling
  3. customthe reaction
  4. washwashed with water
  5. dry with materialdried over sodium sulphate
  6. concentrationconcentrated
  7. custompurified by column chromatography

Sources & evidence

ORD record
ord-6f19b4ef56ae469bafee26999165ef95
Source dataset
uspto-grants-2013_03
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08389508B2

Reaction notes

Loading…

On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes