Zur Umsetzung von 8a-Methoxy-3,4-dihydro-2H-1,4-benzoxazin-6(8aH)-onen mit Diazoalkanen, 2. Mitt.
✍ Scribed by Manfred Schubert-Zsilavecz; Ferdinand Belaj; Robert Ott
- Publisher
- Springer Vienna
- Year
- 1992
- Tongue
- English
- Weight
- 642 KB
- Volume
- 123
- Category
- Article
- ISSN
- 0026-9247
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📜 SIMILAR VOLUMES
The synthesis of a novel "reporter group" reagent-3,4-dihydro-3,4,6-trimethyl-2H,8H-pyrano-[3,2g]-1,3-benzoxazin-2,8-dione (DTPBD)-is described. This compound has a cyclic carbamate functionality and thus, like the previously used 3,4-dihydro-3-methyl-6-nitro-2H-1,3-benzoxazin-2-one (DMNB), has the
**Reactions with Cyclobutenediones LXIV^1)^. – Note on the Synthesis of 3,4‐Dihydro‐7‐phenyl‐2__H__,6__H__‐cyclopenta[b][1,4]dithiepin‐6,8(7__H__)‐dione by Rearrangement of a Dithianylcyclobutenone** The cyclobutene‐1,2‐dione **1b** reacts with 2‐lithio‐1,3‐dithiane to give the hydroxycyclobutenone