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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 41821Generated: October 25, 2026

Pyridine → HCID 58455273, compound

https://huagongshe.com/reaction/41821

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant1,3-Dioxan-5-ol, 2-phenyl-HCID 74362—
ReactantTriphosgeneHCID 94429—
SolventDichloromethaneHCID 6344—
ProductHCID 58455273HCID 58455273—

Reaction Conditions

Temperature-40 °C

Reaction Steps

Triphosgene (bis(trichloromethyl)carbonate (13.35 g, 45.0 mmol) was added under argon at room temperature to a solution of 1,3-O-benzylideneglycerol (18.02 g, 100.0 mmol) in dry CH2Cl2 (300 ml). The reaction mixture was cooled to −40° C. and a solution of pyridine (10.9 ml, 135.0 mmol) was added over 35 min under stirring. Upon completion of the addition the reaction mixture was stirred for 30 min at −40° C. Then it was allowed to warm to 0° C. over 60 min and subsequently warmed to rt over 3.5 h under stirring. The reaction product was used in the next step without any further purification

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08535655B2
Source datasetuspto-grants-2013_09
ORD IDord-88743db5226e4fbcacc170e4ad06550f
Source noteuspto-grants-2013_09