echemi logo
Product
  • Product
  • Supplier
  • Inquiry
    Home > Biochemistry News > Biotechnology News > Summary of experience in NBS bromination reaction

    Summary of experience in NBS bromination reaction

    • Last Update: 2020-10-26
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com

    related topics . NBS bromination
    reagents
    and brominated reaction
    this afternoon steamed NBS brominated products, the results of the afternoon are tears and snot flow together, finally confirmed that: the resulting product is not bromine 2-ph-toluene, but a very strange eye and nose with strong irritation of red-brown liquid, very failed! I'm in a bad mood this afternoon. At first it was thought to be ether or CCl4, but then it was unlikely that the smell of a ether or carbon tetrachloride would be completely different. Finally accepted the fact that the bottle I added last week suspected that either CCl4 liquid might be CCl4!to do bromine reaction, these times have failed, sum up the experience and lessons: 1, solvent must be a lot, its own CCl4 to NBS solubility is not good, plus less is the opposite should be;2, stirring must be good,
    large
    and large mixer;3, NBS and AIBN to join in batches, do not worry, the speed is not up to, this sentence is used in the experiment is too right;3, reaction time can be a little longer, 5h or more can be.
    .
    This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to service@echemi.com. It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to service@echemi.com with relevant evidence.