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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 436388Generated: October 25, 2026

Bromoform → HCID 21452187, compound

https://huagongshe.com/reaction/436388

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromoformHCID 5558—
ReactantSodium HydroxideHCID 14798—
ReactantCyclododecene, (E)-HCID 15164—
ReactantCyclotridecanoneHCID 79114—
CatalystTetramethylammonium bromideHCID 66137—
SolventWaterHCID 962—
ProductHCID 21452187HCID 2145218792%

Reaction Steps

cyclotridecanone: 200 ml of a 50 % aqueous solution of NaOH were added dropwise under vigorous stirring to a mixture of 132 g of cyclododecene (CHEMICAL SAMPLE Co - Columbus, Ohio - USA), 600 g of bromoform and 4 g of tetramethylammonium bromide. The mixture was then left at a temperature between 40° and 50° under stirring during 2 h, whereupon it was left at room temperature overnight and diluted with water. Finally the reaction mixture was extracted with 3 fractions of 300 ml each of ether. The combined extracts, after the usual treatments of washing, drying and evaporation, gave a residue which upon fractional distillation under reduced pressure yielded 173 g (92 %) of 2,2-dibromo-bicyclo[10.1.0]tridecane.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04009127
Source datasetuspto-grants-1977_02
ORD IDord-50b3cba028d0444e8df9b173bc48c74d
Source noteuspto-grants-1977_02