Reaktion #2506751

Reaktionsgleichung

3-[(1,3-benzodithiol-2-ylidene)amino] -2-thioxo-4-thiazolidinone

3-[(1,3-Benzodithiol-2-ylidene)amino]-2-thioxo-4-thiazolidinone

phenylacetaldehyde

→

title compound

3-(1,3-Benzodithiol-2-ylideneamino)-5-(2-phenylethylidene)-2 -thioxo-4-thiazolidinone

Lösungsmittel

glyme

Reaktionsbedingungen

Aufarbeitung

1. 1
   Temperaturat reflux for 4 days
2. 2
   FiltrationThe reaction mixture is filtered while hot, and the solid
3. 3
   Sonstigeis collected
4. 4
   Sonstigerecrystallized from dimethylformamide

Vorschrift

A slurry of 2.98g of 3-[(1,3-benzodithiol-2-ylidene)amino] -2-thioxo-4-thiazolidinone (see example 37), phenylacetaldehyde (10 ml, excess) and acetic acid/piperidine (10 drops) in 600 ml of anhydrous glyme is heated at reflux for 4 days. The reaction mixture is filtered while hot, and the solid is collected and recrystallized from dimethylformamide to yield 1.78 g of the title compound, melting point 233°-234° C.

Quelle