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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1627798Generated: November 1, 2026

Formaldehyde → HCID 66597447, compound

https://huagongshe.com/reaction/1627798

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantTetrahydrofuranHCID 8028—
ReactantLithium HexamethyldisilazideHCID 2733832—
ReactantHCID 66597278HCID 66597278—
SolventDimethylformamideHCID 6228—
ProductHCID 66597447HCID 6659744736%

Reaction Steps

This compound was prepared according to the procedure C from methyl [2-methyl-4-p-tolyl-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-b]pyridin-3yl]acetate (0.386 g; 1.1 mmol), LHMDS 1N in THF (1.21 mL; 1.21 mmol), para-formaldehyde (0.050 g; 1.65 mmol) in DMF (4 mL) for 4 h. Purification by flash chromatography on silica gel using a gradient of ethyl acetate (3-100%) in heptane furnished 0.154 g (36%) of the title compound as a light yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08785638B2
Source datasetuspto-grants-2014_07
ORD IDord-41308ee30a444744acae6e32a4455893
Source noteuspto-grants-2014_07