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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1285290Generated: October 31, 2026

Lithium diisopropylamide → HCID 178506810, compound

https://huagongshe.com/reaction/1285290

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium diisopropylamideHCID 2724682—
ReactantPhosphonic acid, (difluoromethyl)-, diethyl esterHCID 2758305—
ReactantAcetone cardiceHCID 18522661—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178506810HCID 178506810—

Reaction Steps

A 5° solution of lithium diisopropylamide in THF (7.7 mmol, 17 ml) is added slowly (10 min) to a solution of diethyl difluoromethylphosphonate (8 mmol, 1.5 g) in THF (20 ml) with dry ice/acetone cooling. The mixture is stirred for 5 min before steroid addition.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04567000
Source datasetuspto-grants-1986_01
ORD IDord-81ffc4330cd74284baa2b787081103d0
Source noteuspto-grants-1986_01