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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2251955Generated: November 2, 2026

2-Chlorobenzaldehyde → HCID 69153642, compound

https://huagongshe.com/reaction/2251955

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-ChlorobenzaldehydeHCID 6996—
ReactantDiisopropylamineHCID 7912—
Reactant3-BromopyridineHCID 12286—
ReactantAmmonium ChlorideHCID 25517—
ReactantButyllithiumHCID 178418339—
SolventTetrahydrofuranHCID 8028—
ProductHCID 69153642HCID 69153642—

Reaction Conditions

Temperature-70 °C

Reaction Steps

Add n-BuLi (48.2 mL, 77.1 mmol, 1.6N in hexane) to a −70° C. solution of diisopropylamine (10.8 mL, 77.1 mmol) in THF (130 mL) in a flame-dried flask. After 30 minutes add 3-bromo-pyridine (2.48 mL, 25.7 mmol) dropwise and stir the mixture at −70° C. After 4 hours, add 2-chloro-benzaldehyde (2.95 mL, 26.2 mmol) dropwise, stir at −70° C. After 1 hour, warm reaction to RT, quench reaction with dropwise addition of 60 mL saturated NH4Cl solution. Extract with Et2O (3×), wash with brine, dry the combined organic layers over MgSO4 and concentrate. Purify the residue by flash chromatography on silica gel eluting with 0-40% EtOAc/hexane to afford the title compound: MS(IS) 299 (M+1); TLC (50% EtOAc/hexanes) Rf=0.23.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07320994B2
Source datasetuspto-grants-2008_01
ORD IDord-6544fcc6b8db4614b74856ff313c8981
Source noteuspto-grants-2008_01