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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1603271Generated: October 29, 2026

2,2,6-Trimethylcyclohexanone → 2-Ethynyl-1,3,3-trimethylcyclohex-1-ene

https://huagongshe.com/reaction/1603271

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,2,6-TrimethylcyclohexanoneHCID 17000—
ReactantTrimethylsilylacetyleneHCID 66111—
ReactantTetrabutylammonium FluorideHCID 2724141—
ReactantMethyl-N-(triethylammoniumsulfonyl)carbamateHCID 9566069—
Product2-Ethynyl-1,3,3-trimethylcyclohex-1-eneHCID 13296912—

Reaction Steps

The prerequisite 2-ethynyl-1,3,3-trimethyl-1-cyclohexene was synthesized according to standard procedures by addition of the Li-derivative of TMS-acetylene to 2,2,6-trimethylcyclohexanone, dehydration by treatment with Burgess-reagent (methoxy-carbonylsulfamoyl-triethylammonium hydroxide, inner salt), and finally desilyation with tetrabutylammonium fluoride. It has to be used immediately due to its instability.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05986131
Source datasetuspto-grants-1999_11
ORD IDord-18fd6c4baf294af594d496449e704a64
Source noteuspto-grants-1999_11