29800-56-4

Basic information

• Product Name: Spiro[3.5]nonan-2-one
• CAS NO: 29800-56-4
• Molecular Formula: C9H14O
• Molecular Weight: 138.21
• Mol File: 29800-56-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Spiro[3.5]nonan-2-one(CAS DataBase Reference)
• NIST Chemistry Reference: Spiro[3.5]nonan-2-one(29800-56-4)
• EPA Substance Registry System: Spiro[3.5]nonan-2-one(29800-56-4)

Safety Data

• Hazardous Substances Data: 29800-56-4(Hazardous Substances Data)

Upstream product

• 60-29-7 diethyl ether 
• 70197-61-4 Dimethyl 1,1-cyclohexanediacetate 
• 124-41-4 sodium methylate 
• 27473-43-4 diazomethyl hexahydrobenzyl ketone 
• 56-23-5 tetrachloromethane 
• 108667-25-0 cyclohexylidenedi-acetic acid diethyl ester 

Downstream Products

• 1189573-02-1 C₂₃H₄₂O₂Si 
• 1189572-90-4 C₁₅H₂₂O₂ 
• 1579298-10-4 2-(1-phenylvinyl)spiro[3.5]nonan-2-ol 
• 154206-67-4 2-methoxyl-2-(2'-oxo-(E)-4'-phenyl-3'-butenyl)spiro<3,5>nonane 
• 154277-91-5 2-(2'-oxo-(E)-4'-phenyl-3'-butenylidene)spiro<3,5>nonane 
• 67950-95-2 1-carboxycyclohexylacetic acid 
• 7236-78-4 2-oxaspiro<4.5>decan-3-one 

Relevant articles and documents

Cyclopentanone Synthesis by Intramolecular Carbon-Hydrogen Insertion of Diazo Ketones. A Diterpene-to-Steroid Skeleton Conversion

Intramolecular carbon-hydrogen insertion on cupric sulfate assisted decomposition of diazomethyl ketones derived from four 1-methylcycloalkanecarboxylic acids and (hexahydrophenyl)acetic, homopivalic, and enanthic acids is shown to yield mostly cyclopentanones.The yields are appreciable in the conformationally favorable cases, and insertion in the solvent cyclohexane can be avoided by the use of Freon TF as the solvent.The conversion of a primaradienic diterpene into a 14-iso-16-androstanone derivative shows the power of the new method of cyclopentanone synthesis.