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XLIV Table <strong>of</strong> Contents<br />

17.4.4.5.2.4 Method 4: Conversion <strong>of</strong> Dibenzo[b,f ]thiepin-10(11H)-ones into Alcohols<br />

and Elimination <strong>of</strong> Water or Its Equivalents ................. 736<br />

17.4.4.5.2.4.1 Variation 1: By Organometallic Addition to the Carbonyl and Elimination<br />

<strong>of</strong> Water .................................................. 736<br />

17.4.4.5.2.4.2 Variation 2: By Reduction <strong>of</strong> the Carbonyl Function and Elimination<br />

<strong>of</strong> Water .................................................. 738<br />

17.4.4.5.3 Synthesis by Ring Transformation .......................................... 739<br />

17.4.4.5.3.1 Method 1: Acid-Mediated One-Carbon Ring Expansions ................ 740<br />

17.4.4.6 Dibenzo[b,f]thiepin S-Oxides and S-Imines ................................. 740<br />

17.4.4.6.1 Synthesis by Substituent Modification ..................................... 740<br />

17.4.4.6.1.1 Method 1: Oxidation <strong>of</strong> Dibenzo[b,f]thiepins to Oxides <strong>of</strong> Sulfur ....... 740<br />

17.4.4.6.1.2 Method 2: Sulfur Imination <strong>of</strong> Dibenzo[b,f]thiepins .................... 741<br />

17.4.4.7 Dibenzo[b,f]selenepins ................................................... 742<br />

17.4.4.7.1 Aromatization ............................................................ 742<br />

17.4.4.7.1.1 Method 1: Conversion into Enamine Forms <strong>of</strong> Dibenzo[b,f ]selenepin-<br />

10(11H)-ones Using Titanium(IV) Chloride .................. 742<br />

17.4.4.8 Tribenzo[b,d,f ]thiepins and Their S-Oxides ................................. 743<br />

17.4.4.8.1 Synthesis by Construction <strong>of</strong> a Fused Ring ................................. 743<br />

17.4.4.8.1.1 Method 1: From Dibenzo[b,f]thiepin-10-yne .......................... 743<br />

17.4.4.8.1.2 Method 2: From Dibenzo[b,f]thiepin-10,11-dione ...................... 744<br />

17.4.5 Product Subclass 5: Azepines, Cyclopentazepines, and Phosphorus<br />

Analogues<br />

M. D. Surman and R. H. Hutchings<br />

17.4.5 Product Subclass 5: Azepines, Cyclopentazepines, and Phosphorus<br />

Analogues ............................................................... 749<br />

17.4.5.1 Synthesis by Ring-Closure Reactions ....................................... 750<br />

17.4.5.1.1 By Formation <strong>of</strong> Two N—C Bonds .......................................... 750<br />

17.4.5.1.1.1 Fragments C—C—C—C—C—C and N ........................................ 750<br />

17.4.5.1.1.1.1 Method 1: From 2,6-Bifunctional Fulvenes and Ammonia .............. 750<br />

17.4.5.1.2 By Formation <strong>of</strong> One N—C and One C—C Bond ............................. 751<br />

17.4.5.1.2.1 Fragments N—C—C—C—C and C—C ........................................ 751<br />

17.4.5.1.2.1.1 Method 1: Condensation <strong>of</strong> 4-Hydroxy-2,3,4-triphenylcyclopent-2-enone<br />

with Pyrrolidine ........................................... 751<br />

17.4.5.1.2.1.2 Method 2: Condensation <strong>of</strong> 2-Vinyl-2H-azirines with Dimethyl<br />

Acetylenedicarboxylate .................................... 752<br />

17.4.5.1.2.2 Fragments N—C—C—C and C—C—C ........................................ 753<br />

17.4.5.1.2.2.1 Method 1: Annulation <strong>of</strong> Fischer Carbenes with Azadienes ............. 753<br />

17.4.5.1.2.2.2 Method 2: Condensation <strong>of</strong> 3-Phenyl-2H-azirine-2-carbaldehyde with<br />

Methyl 4-(Triphenylphosphoranylidene)but-2-enoate ....... 754

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