Results 1 to 10 of about 473 (148)

Palladium‐Catalyzed Cascade to Benzoxepins by Using Vinyl‐Substituted Donor–Acceptor Cyclopropanes [PDF]

Angewandte Chemie - International Edition, 2021
A palladium‐catalyzed intermolecular cascade (4+3) cyclocondensation of salicylaldehydes and vinylcyclopropanes is reported. A key feature of the reaction is the use of a phosphonate group as an acceptor moiety on the cyclopropane, exploiting its ...
Matteo Faltracco, Jordy M Saya, Trevor A Hamlin   +2 more
exaly   +9 more sources

Product Subclass 2: Benzoxepins [PDF]

, 2004
Weinreb, Schaumann
exaly   +4 more sources

Benzoxepins (Update 2012) [PDF]

, 2012
AbstractThis manuscript is an update to the earlier Science of Synthesis contribution describing methods for the synthesis of benzoxepins. It focuses on the literature published in the period 2003–2011.
Li, Marek, Oestreich, Schaumann, Weinreb, Yus   +5 more
core   +3 more sources

Aluminum(III)-Promoted Prins Cyclization of 2-Allylphenols: An Expedient Synthesis of Benzoxepins

Synthesis, 2008
2-Allylphenols undergo smooth cross coupling with ketones under mild conditions to produce spirocyclic oxepins in good yields with high chemoselectivity, whereas aromatic aldehydes provide benzoxepins with moderate stereoselectivity.
Nagendra Nath Yadav
exaly   +3 more sources

ChemInform Abstract: THE SYNTHESIS OF 1-HALOALKYL-1,3,4,5-TETRAHYDRO-2-BENZOXEPINS

Chemischer Informationsdienst, 1981
AbstractDie Reduktion der Phenylpropionsäure (Ia) liefert das Carbinol (Ib), das zum Acetal (II) substituiert und dann zum Brommethyl‐benzoxepin (III) cyclisiert wird.
TENBRINK
core   +3 more sources

A new preparation of 2,5-dihydro-1-benzoxepins using Mitsunobu cyclization, and the synthesis of natural radulanins

Tetrahedron Letters, 2000
Hajime Yokoyama, Katsunori Furihata, Masahiro Miyazawa, Seiji Yamaguchi, Yoshiro Hirai   +4 more
exaly   +5 more sources

Benzoxepins

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
von Angerer
core   +2 more sources

Heterocyelische Siebenring-Verbindungen, XXVI [1] Darstellung und photochemische Reaktion einiger substituierter 4-Phenyl-l-benzoxepine / Heterocyclic Seven-membered Ring Compounds, XXVI [1] Synthesis and Photochemical Reaction of Several 4-Phenyl-1-benzoxepins

Zeitschrift Fur Naturforschung - Section B Journal of Chemical Sciences, 1983
The 4-phenyl-l-benzoxepins 4, 5 and 8 have been prepared from the seven-membered diketone 1 by enol-alkylation or -acylation reactions; their photoreaction yields the corresponding 1-phenyl-2a,7 b-dihydrocyclobuta[b] l-benzofurans 9, 10 and 11.
H. Hofmann, R. Heidrich, A. Seubert
exaly   +2 more sources

Previously undescribed benzoxepins with bioactivities against inducible pro-inflammatory cyclooxygenase and lipoxygenase from Rhizophora annamalayana

Natural Product Research, 2019
Two unprecedented benzoxepins were obtained from the ethyl acetate fraction of the leaves of Rhizophora annamalayana Kathir, and characterized as 4-(11-(hydroxymethyl)-10-methylpentan-2-yl)-4, 5-dihydrobenzo[c]oxepin-1(3H)-one (1) and (E)-methyl-14 ...
Kajal Chakraborty, Kathiresan K, Martins JN, Vamshi Krishna Raola   +3 more
core   +2 more sources

ChemInform Abstract: 3‐Methyl‐2,5‐dihydro‐1‐benzoxepins and 3‐Methyl‐2,5‐dihydrooxepins.

, 2009
Three preparative procedures of seven-membered O-heterocyclic 3-methyl-2,5-dihydro-l-benzoxepin derivatives are summarized. For the Z-selective formation of C=C double bond, the first approach used the Grubbs ring-closing methathesis, the second approach
Seiji Yamaguchi
core   +2 more sources