I know that it is cyclohexanol and by analysing the NMR I know that the peak at around 2.8 is the OH and the peak around 3.6 is the deshielded CH. The acute LD50 for the closely related methyl vinyl ether is greater than 4 g/kg (rats, oral). Ive been given this NMR along with the IR and Mass Spec and assigned the task of figuring out the unknown compound. The toxicity of vinyl ethers has been heavily investigated because they have been used as inhalation anesthetics. This alcohol protection reaction is akin to the behavior of dihydropyran.Įthyl vinyl ether also participates in inverse demand cycloaddition reactions.ĭeprotonation with butyl lithium gives the acetyl anion equivalent:ĮtOCH=CH 2 + BuLi → EtOC(Li)=CH 2 + BuH Toxicity
With catalytic amounts of acids, ethyl vinyl ether adds to alcohols to give the mixed acetal: Įthyl vinyl ether participates in many reactions of interest to organic synthesis. The relevant parameter is, representing the fractional deviation. A classic example is the ethanol molecule C C OH, which shows three chemically-distinct hydrogen atom sites, thus three NMR peaks with intensity ratios 3:2:1. Polymerization is typically initiated with Lewis acids such as boron trifluoride. The resonances are sensitive to the chemical environment of nonequivalent protons, an effect known as the chemical shift.
It is prone to polymerization, leading to formation of polyvinyl ethers. The alkene portion of the molecule is reactive in many ways. Preparation and reactions Įthyl vinyl ether is made by reaction of acetylene and ethanol in presence of a base. En su espectro de RMN destacan las seales simples de los protones del metileno. Arquivo de termoquímica de compostos orgânicos do NIST Uma descrição da. Termoquímica de iões em fase gasosa Uma explicação aprofundada dos dados de iões em fase gasosa aqui disponíveis. Use of ethyl vinyl ether in the synthesis of glutaraldehyde. fue fraccionado con un gradiente ascendente de metanol, y las fracciones. O espectro de adicionada foi subtraído pelo espectro de para gráfico da área desta banda isolada em função da quantidade Figura 3 Espectro RMN do etanol (em CDCl 3) obtido no espectrômetro Bruker AIII 500 MHz. Um guia para o livro de Química do NIST na Web Um guia para este sítio electrónico e para os dados aqui disponíveis.
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