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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 930803Generated: October 29, 2026

Triphenylphosphine → 8-chloro-1-cyclopropyl-3,4-dihydro-1H-pyrimido[1,6-a]pyrimidin-6(2H)-one

https://huagongshe.com/reaction/930803

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriphenylphosphineHCID 11776—
ReactantDiisopropyl azodicarboxylateHCID 5363146—
ReactantHCID 178517809HCID 178517809—
Product8-chloro-1-cyclopropyl-3,4-dihydro-1H-pyrimido[1,6-a]pyrimidin-6(2H)-oneHCID 90306570—

Reaction Steps

To a solution of 4-chloro-6-(cyclopropyl(3-hydroxypropyl)amino) pyrimidin-2(1H)-one (2 g, 8.21 mmol) in tretrahydrofuran (20 mL) were added DIAD (2.394 mL, 12.31 mmol) and triphenylphosphine (3.23 g, 12.31 mmol) at r.t., stirred for 3 h, and concentrated. Purification via C-18 column, and afforded the title compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09296755B2
Source datasetuspto-grants-2016_03
ORD IDord-649d0cc2fd5c4300827b14d06ece8d9f
Source noteuspto-grants-2016_03