934821-86-0

Upstream product

• 211995-75-4 4-methylene-1-(tetrahydropyran-2-yloxy)cyclohexane 
• 934821-87-1 methyl 4-(tetrahydro-2H-pyran-2-yloxy)cyclohexanecarboxylate 
• 99-76-3 methyl 4-hydroxylbenzoate 
• 3618-03-9 methyl 4-hydroxycyclohexanecarboxylate 
• 64230-40-6 4-(2-Tetrahydropyranyloxy)-1-cyclohexanol 
• 556-48-9 1,4-Cyclohexanediol 
• 60739-53-9 4-(tetrahydro-2H-pyran-2-yloxy)cyclohexanone 

Downstream Products

• 934821-85-9 C₁₃H₂₄O₃ 
• 934821-79-1 8-methoxymethyl-1,3-diaza-spiro[4.5]decane-2,4-dione 
• 17159-84-1 4-(methoxymethyl)cyclohexan-1-one 
• 26845-57-8 Allyl-4-cyclohexanon 

Relevant academic research and scientific papers

Alkoxyalkyl Spirocyclic Tetramic Acids and Tetronic Acids

The invention relates to novel alkoxyalkyl spirocyclic tetramic and tetronic acids of the formula (I), in which A, B, D, Q1, Q2, Q3, Q4, G, W, X, Y and Z are as defined above, to a plurality of processes and intermediates for their preparation and to their use as pesticides and/or herbicides and/or microbicides, and also to selective herbicidal compositions comprising, firstly, the alkoxyalkyl spirocyclic tetramic and tetronic acids and, secondly, at least one crop plant compatibility-improving compound.

Intramolecular Cyclization of 4-[3-(Trimethylsilyl)prop-1-en-1-yI]-cyclohexanecarbaldehyde with Loss of Formyl Carbon

Treatment of cis- and trans-4-[3-(trimethylsilyl)prop-1-en-1-yl]cydohexanecarbaldehyde (2a and 2b) with tetrabutylammonium fluoride in dilute tetrahydrofuran afforded 7-vinylbicyclo(2.2.1]heptan-1-ol (3), the same product obtained from 4-[3-(trimethylsilyl)prop-1-en-1-yl]cyclohexanone (1). It was found that oxidative deformyhition of 2a, b to 1 takes place under basic conditions before the cyclization to 3. It was also shown that cyclization of allylsilane with carbonyl does not proceed via an eclipsed conformation.