129085-00-3

Upstream product

• 136296-89-4 Hydrazone de la 3-(2-benzyloxy-1-methylethyl)-2-(2-methoxyethyl)-2-methylcyclobutanone 
• 517-23-7 3-acetyl-2-oxo-4,5-dihydrofuran 
• 35841-41-9 Acide 4-methoxy-2-methylbutanoique 
• 4516-90-9 2-methyl-3-buten-1-ol 
• 53774-20-2 2-methylbut-3-enoic acid 
• 1679-47-6 3-methyltetrahydro-2-furanone 
• 129084-99-7 3-(2-Benzyloxy-1-methylethyl)-2-(2-methoxyethyl)-2-methylcyclobutanone 
• 86213-42-5 [(RS)-2-methylbut-3-enyloxymethyl]benzene 
• 136295-89-1 4-Methoxy-N,N,2-trimethylbutyramide 
• 129084-98-6 1-Chloro-4-methoxy-N,N,2-trimethylbut-1-enylamine 
• 136295-88-0 Chlorure de 4-methoxy-2-methylbutanoyle 

Relevant academic research and scientific papers

The reaction of ketene-iminium ions with various olefins: A new preparation method for grandisol, fragranol and related dimethyl ethers

We describe here the preparation of grandisol, fragranol and several related cyclobutanic by-products by procedures employing a [2+2] cycloaddition reaction between an olefine and a ketene-iminium cation generated in situ from an α-chloroenamine. The region- and stereospecificity of these cyclization reactions are studied.