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Einwirkung von Phthalsäure-anhydrid auf 1.6-Dioxy-naphthalin. Bildung von 6.6′-Dioxy-naphthofluoran. (II)

✍ Scribed by Fischer, O. ;König, E.

Book ID
101798307
Publisher
Wiley (John Wiley & Sons)
Year
1917
Weight
252 KB
Volume
50
Category
Article
ISSN
0365-9631

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Unexpected Formation of γ‐Lactams from 6__H__‐1,2‐Oxazines Promoted by Lewis Acids The reaction of 6__H__‐1,2‐oxazine 1 with trimethylsilyl cyanide in the presence of titanium tetrachloride provides α,β‐unsaturated γ‐lactam 3. Similarly, Lewis acid‐promoted addition of trimethyl phosphite towards 1