𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A simple method of preparing accurate pen-and-ink drawings of specimens

✍ Scribed by Shennan, T.


Publisher
Wiley (John Wiley & Sons)
Year
1929
Tongue
English
Weight
274 KB
Volume
32
Category
Article
ISSN
0368-3494

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A simple and efficient method of prepari
✍ Lian Hao Zhang; Jianxin Duan; Yuelian Xu; William R. Dolbier Jr. πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 French βš– 117 KB

A new and convenient method for Β’~-bromination of aliphatic carboxylic acids is reported. Heating carboxylic acids for 16 hours at 85 Β°C in trifluoroacetic acid with 1.5 equivalents of N-bromosuccinimide and a catalytic amount of concentrated H2SO4 leads to good yields of the respective cx-bromocarb