Ox azepines

A practical synthesis of 1,3-OX AZEPINES VIA PHOTOISOMERIZATION OF HETERO AROMATIC V-OXIDES is illustrated for 3,1-BENZOXAZEPINE. A hydroboration procedure for the synthesis of PERHYDRO-9b-BORAPHENALENE AND PERHYDRO-9b-PHEN-ALENOL illustrates beautifully the power of this methodology in the construction of polycyclic substances. The conversion of LIMONENE TO p-MENTH-8-EN-YL METHYL ETHER demonstrates a regio-and chemoselective method for the PHOTOPROTONATION OF CYCLOALKENES. An efficient method for the conversion of a ketone to an olefin involves REDUCTIVE CLEAVAGE OF VINYL PHOSPHATES. A mild method for the conversion of a ketone into the corresponding trimethylsiloxy enol ether using trimethylsilyl acetate is shownforthe synthesis of (Z)-3-TRIMETHYLSILOXY-2-PENTENE. 

Ashton, L, Cotes, J.E., Holland, P, et al., 1978. Acute effect of dibenz ( l 4-ox-azepine upon the lung function of healthy young men. J. Physiol. 275,85. 

The following abbreviation ) are used in this index (see p. 663) azep, azepine im, imidazole Nox, N-oxide O2. dioxide ox, oxazine oxdazol, oxadiazole oxep, oxepine p. pyridine paz, pyrazine pdaz. pyridazine pm, pyrimidine prr, pyrrole pzol, pyrazole tetrazep, teirazepine ihzn, thiazine thzol, ihiazole triazep, triazepine trzn, triazine. 

A new alkaloid, stryvomicine A, that contains an unprecedented heptacyclic ring system, was isolated from the seeds of Strychnos nux-vomica (14TL6538). Octahydropyrrolo[2,l-l)][l,3]ox(thi)azepines were found to potendy sensitize previously resistant cancer cell lines to TNF-related apoptosis-inducing ligand (14MCT5). 

A number of amine-tethered tributylstannanes 94, termed SnAP (Sn amino protocol) reagents, have been developed, and when reacted with various aldehydes 95 formed a diverse set of N-unprotected and saturated l,4-ox(di)azepines 96 in a mild, scalable, one-pot process with excellent functional group tolerance (14NC310). 

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