Novel opiates and antagonists. Part 7. Diels-Alder reaction of .beta.-dihydrothebaine and its 4-phenyl ether with methyl vinyl ketone: synthesis of 6,14-exo-ethenomorphinans

1983 ◽  
Vol 48 (22) ◽  
pp. 4137-4139 ◽  
Author(s):  
Anil C. Ghosh ◽  
David E. Portlock ◽  
Haldean C. Dalzell ◽  
Cecil Malmberg ◽  
Patricia Herlihy ◽  
...  
Keyword(s):  
Alder Reaction ◽  
Diels Alder ◽  
Vinyl Ketone ◽  
Methyl Vinyl Ketone ◽  
Phenyl Ether ◽  
Methyl Vinyl ◽  
Diels Alder Reaction

scholarly journals The Diels-Alder reaction of 3-acetoxy-1-vinylcyclohexene with methyl vinyl ketone.

1989 ◽  
Vol 37 (9) ◽  
pp. 2307-2309 ◽  
Author(s):  
Takeshi KAWAMATA ◽  
Kenzo HARIMAYA ◽  
Yoichi IITAKA ◽  
Seiichi INAYAMA
Keyword(s):  
Alder Reaction ◽  
Diels Alder ◽  
Vinyl Ketone ◽  
Methyl Vinyl Ketone ◽  
Methyl Vinyl ◽  
Diels Alder Reaction

scholarly journals Attempted Diels-Alder Reactions on Vindoline Derivatives

2017 ◽  
Vol 61 (4) ◽  
pp. 258 ◽  
Author(s):  
Szabolcs Mayer ◽  
Péter Keglevich ◽  
Péter Ábrányi-Balogh ◽  
Áron Szigetvári ◽  
Miklós Dékány ◽  
...  
Keyword(s):  
Alder Reaction ◽  
Diels Alder ◽  
Vinyl Ketone ◽  
Methyl Vinyl Ketone ◽  
Methyl Vinyl ◽  
Diels Alder Reaction ◽  
Quinone Derivative

The Diels-Alder reaction of vindoline and methyl vinyl ketone resulted in a Friedel-Crafts reaction product. In the reaction between the ortho-quinone derivative of vindoline and N-phenylmaleimide, two anomalous products were obtained, a vindoline dimer, and a condensed vindoline derivative.

Mechanism of Scandium Ion Catalyzed Diels−Alder Reaction of Anthracenes with Methyl Vinyl Ketone

2005 ◽  
Vol 109 (14) ◽  
pp. 3174-3181 ◽  
Author(s):  
Shunichi Fukuzumi ◽  
Junpei Yuasa ◽  
Toshio Miyagawa ◽  
Tomoyoshi Suenobu
Keyword(s):  
Alder Reaction ◽  
Diels Alder ◽  
Vinyl Ketone ◽  
Methyl Vinyl Ketone ◽  
Methyl Vinyl ◽  
Diels Alder Reaction

The total synthesis of (+)-ryanodol. Part I. General strategy and search for a convenient diene for the construction of a key tricyclic intermediate

1990 ◽  
Vol 68 (1) ◽  
pp. 115-126 ◽  
Author(s):  
Pierre Deslongchamps ◽  
André Bélanger ◽  
Daniel J. F. Berney ◽  
Hans-Juerg Borschberg ◽  
Robert Brousseau ◽  
...  
Keyword(s):  
Total Synthesis ◽  
Alder Reaction ◽  
Diels Alder ◽  
Vinyl Ketone ◽  
Methyl Vinyl Ketone ◽  
General Strategy ◽  
Methyl Vinyl ◽  
Synthetic Strategy ◽  
Diels Alder Reaction ◽  
Retrosynthetic Analysis

This paper reports a retrosynthetic analysis that led to the conception of a synthetic strategy for the construction of ryanodol (2). The preparation of a key diene, i.e., spirolactone dienone 47 (19 → 31 → 33 → 48 → 49 → 52 → 47), and its Diels–Alder reaction with methyl vinyl ketone are reported. Keywords: strategy, synthesis, ryanodol, diterpene.

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