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Tanaka et al., 1999 - Google Patents

A Practical Synthesis of 3-Chloro-α-Bromostyrene Starting from 3-Chloroethylbenzene

Tanaka et al., 1999

Document ID
4248766879495535978
Author
Tanaka K
Hosokawa A
Tanigawa Y
Lu G
Publication year
Publication venue
Synthetic communications

External Links

Snippet

CMoro-α, β-dibromoethylbenzene was prepared via I2 catalyzed bromination of 3-chloro-α- bromoethylbenzene. It was dehydrobrominated with aqueous NaOH in the presence of n- Bu4N+ HSO4− to give 3-chloro-α-bromostyrene in 92% overall yield. Samarium metal reacts …
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    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/68Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
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    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00Preparation of halogenated hydrocarbons
    • C07C17/093Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/10Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
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    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
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    • C07C49/00Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
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    • C07C49/687Unsaturated compounds containing a keto groups being part of a ring containing halogen
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    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2103/00Systems containing at least three condensed rings
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    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78Separation; Purification; Stabilisation; Use of additives
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