1119-82-0

Basic information

• Product Name: 1-Octene, 1,1-dichloro-
• CAS NO: 1119-82-0
• Molecular Formula: C8H14Cl2
• Molecular Weight: 181.105
• Mol File: 1119-82-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1-Octene, 1,1-dichloro-(CAS DataBase Reference)
• NIST Chemistry Reference: 1-Octene, 1,1-dichloro-(1119-82-0)
• EPA Substance Registry System: 1-Octene, 1,1-dichloro-(1119-82-0)

Safety Data

• Hazardous Substances Data: 1119-82-0(Hazardous Substances Data)

Upstream product

• 111-71-7 heptanal 
• 3167-62-2 diethyl (dichloromethyl)phosphonate 

Downstream Products

• 2129-95-5 2-methyl-2-nonene 
• 27370-93-0 (2Z)-2-chloro-2-nonene 
• 70049-88-6 3-phenyl-2-nitronaphtho-[1,2-b]-furan 
• 1530-21-8 1,1-diphenyl-1-octene 

Relevant articles and documents

Carbanions phosphonate prepares par voie electrochimique: formation et reactivite vis-a-vis d'un aldehyde

Reactivity towards p-methoxybenzaldehyde (ArCHO) of electrochemically generated phosphonate carbanions has been investigated.Electrolyses were carried out at a mercury cathode in DMF and two routes to the desired carbanion have been compared: (i) Deprotonation of phosphonates of general formula (EtO)2P(O)CHYW (Y = W = Cl; Y = H, W = Cl; Y = Cl, W = CO2Et; Y = H, W = CO2Et; Y = CH3, W = CO2Et; Y = Cl, W = CH3), by the bases resulting from the electroreduction of azobenzene; addition of the carbanion formed onto the carbonyl group takes place and leads to the adduct (EtO)2P(O)CYW(Ar)O-. (ii) Two-electron reduction of halophosphonates (EtO)2P(O)CXYW (X = Cl, Y and W as above; X = Br, W = CO2Et, Y = Cl, Br, or CH3); when no H atom is present on the carbon bearing the phosphonate group (Y and W no = H), the same evolution leading to the above adduct is observed, on the contrary, when Y = H, the electrogenerated carbanion deprotonates the substrate and the resulting carbanion (EtO)2P(O)CXW reacts with the aldehyde; giving the adduct (EtO)2P(O)CXW(Ar)O-.Evolution of the intermediate adduct depends on the substituents Y (or X) and W: when W = CO2Et, whatever the nature of Y (or X), diethyl phosphate is eliminated with formation of the ethylenic ArCH=CWY (or X) (Wittig-Horner reaction); the same evolution is observed when Y = W = Cl.When W = Cl and Y = H or CH3, the final product is the phosphonate epoxyde resulting from chloride elimination (Darzens reaction).Chemo- and stereoselectivity depend only on the nature of Y and W but are independent of the mode of generation of the carbanion.Yields are limited by side-protonation reactions, which are related to the basicity of the phosphonate carbanions.Analysis of the results permits selection of the optimal electrolysis conditions for purposes of synthesis.Key words: electrosynthesis, electrogenerated bases, phosphonates, Wittig-Horner.