A convenient synthesis of 8-oxoprotoberberine derivatives
β Scribed by Somsak Ruchirawat; Werawat Lertwanawatana; Pongtip Thepchumrune
- Book ID
- 104213000
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- French
- Weight
- 233 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
The annulation of isoquinoline derivatives to form the 8-oxoprotostep of the reaction involves intra-berbefine molecular derivatives is described. The key alkylation of the Reissert compounds.
π SIMILAR VOLUMES
## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract 3βNitrophthalic acid **1** was converted selectively to the two regioisomeric monoesters **2** and **3**, which were subsequently transformed __via__ Curtius rearrangement to the corresponding 5β and 8βnitroquinazolineβ2,4βdiones **4** and **5**, respectively. The reduction of the nitro