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Chemical Structure| 116026-99-4 Chemical Structure| 116026-99-4

Structure of 116026-99-4

Chemical Structure| 116026-99-4

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Product Details of [ 116026-99-4 ]

CAS No. :116026-99-4
Formula : C11H14N2O3
M.W : 222.24
SMILES Code : O=C(OC(C)(C)C)NC1=CC=CN=C1C=O
MDL No. :MFCD04035594
InChI Key :AHTZIHDCJWVLKK-UHFFFAOYSA-N
Pubchem ID :10911130

Safety of [ 116026-99-4 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H319
Precautionary Statements:P305+P351+P338

Application In Synthesis of [ 116026-99-4 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 116026-99-4 ]

[ 116026-99-4 ] Synthesis Path-Downstream   1~3

  • 1
  • [ 2591-86-8 ]
  • [ 116026-98-3 ]
  • [ 116026-99-4 ]
YieldReaction ConditionsOperation in experiment
65% Step 2: fert-Butyl 2-formylpyridin-3-ylcarbamate (10b)To a solution of compound 10a (2.9 g, 10.7 mmol) in THF (30 mL) was added n-BuLi (2.5M, 8.5 mL, 21.4 mmol) at -78C under N2 atmosphere and the resulting mixture was stirred for 1 h at this temperature. /V-Formylpiperidine (1.3 mL, 11.8 mmol) was added with rapid stirring. The mixture was stirred at 0C for 1 h and then partitioned with 1.5M HCI solution. The pH was adjusted to 7 by the addition of solid Na2C03. The aqueous layer was extracted with EA twice and the combined organic layers were dried over Na2S04, concentrated under reduced pressure and purified by CC (PE/EA = 3/1) to give compound 10b (1.5 g, 65%) as a white solid.
64.9% Add the compound (2-bromopyridin-3-yl) tert-butyl carbamate (20.1 g, 73.3 mmol), 200 mL of dry tetrahydrofuran to a 500 mL three-necked flask, and then N2 replacement protection after the temperature in the reaction flask drops to Slowly add n-BuLi (2.4 M, 73 mL) dropwise after -75C, keep the temperature in the reaction flask not to exceed -65C during the dropwise addition, continue to keep the temperature after the drop, and react for 1 h before adding 4-piperidinaldehyde (9.1 g, 80 mmol), stir for about 10 min after the addition, and then raise the temperature to 0C to react for 1 h. After the reaction was monitored by TLC, saturated ammonium chloride solution was added to quench the reaction, the reaction solution was extracted with ethyl acetate, the organic phases were combined, dried and purified by column chromatography (eluent: ethyl acetate-petroleum ether 1:9) to obtain the compound (2-Formylpyridin-3-yl) tert-butyl carbamate (10.6 g, 64.9%).
  • 2
  • [ 79-19-6 ]
  • [ 116026-99-4 ]
  • [ 143621-35-6 ]
  • 3
  • [ 33513-42-7 ]
  • [ 116026-98-3 ]
  • [ 116026-99-4 ]
YieldReaction ConditionsOperation in experiment
43% Into a 1-L 4-necked round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed <strong>[116026-98-3]tert-butyl N-(2-bromopyridin-3-yl)carbamate</strong> (33.8 g, 123.8 mmol, 1.0 equiv) in THF (500 mL). The reaction was cooled to -78 C. This was followed by the addition of n-BuLi (124.2 mL, 1318.5 mmol, 2.5 equiv) and the reaction stirred for 1 h at the same temperature. DMF (10.9 g, 148.5 mmol, 1.2 equiv) was added and the temperature was allowed to warm to 0 C. Following this, the reaction was stirred for 1 h. The reaction was then quenched by the addition of NH4Cl(aq) (300 mL). The resulting solution was extracted with 3*200 mL of ethyl acetate, dried over anhydrous sodium sulfate, filtered, and concentrated. The residue was purified by silica gel column with ethyl acetate/petroleum ether (3:1). 11.9 g (43%) of tert-butyl N-(2-formylpyridin-3-yl)carbamate was obtained as a yellow solid. LCMS (ES) [M+1]+ m/z: 222.
 

Historical Records

Technical Information

• Acyl Group Substitution • Barbier Coupling Reaction • Baylis-Hillman Reaction • Bouveault-Blanc Reduction • Bucherer-Bergs Reaction • Buchwald-Hartwig C-N Bond and C-O Bond Formation Reactions • Catalytic Hydrogenation • Chan-Lam Coupling Reaction • Clemmensen Reduction • Complex Metal Hydride Reductions • Corey-Chaykovsky Reaction • Corey-Fuchs Reaction • Ester Cleavage • Fischer Indole Synthesis • Grignard Reaction • Hantzsch Dihydropyridine Synthesis • Henry Nitroaldol Reaction • Horner-Wadsworth-Emmons Reaction • Hydride Reductions • Julia-Kocienski Olefination • Knoevenagel Condensation • Lawesson's Reagent • Leuckart-Wallach Reaction • Mannich Reaction • McMurry Coupling • Meerwein-Ponndorf-Verley Reduction • Mukaiyama Aldol Reaction • Nozaki-Hiyama-Kishi Reaction • Passerini Reaction • Paternò-Büchi Reaction • Petasis Reaction • Pictet-Spengler Tetrahydroisoquinoline Synthesis • Preparation of Aldehydes and Ketones • Preparation of Amines • Prins Reaction • Reactions of Aldehydes and Ketones • Reactions of Amines • Reactions with Organometallic Reagents • Reformatsky Reaction • Schlosser Modification of the Wittig Reaction • Schmidt Reaction • Specialized Acylation Reagents-Carbodiimides and Related Reagents • Specialized Acylation Reagents-Ketenes • Specialized Acylation Reagents-Vilsmeier Reagent • Stetter Reaction • Stobbe Condensation • Tebbe Olefination • Ugi Reaction • Wittig Reaction • Wolff-Kishner Reduction

Categories

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[ 116026-99-4 ]

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