Reaction #1694242

Reaction equation

N,N'-dimethylethylenediamine

dithiolate

dimedone

carbon disulfide

potassium hydroxide

→

2-[1,2,5-trimethyl-2,5-diaza-7,9-dithiabicyclo(4.3.0)-nonane-8-ylidene]-5,5-dimethyl-1,3-cyclohexanedione

Solvents

dimethylsulfoxide

Conditions

Workup

1. 1
   workup.ADDITIONTo this solution was added dropwise with ice-
2. 2
   workup.ADDITIONThen to this solution was added with ice-
3. 3
   Otherprepared in the manner
4. 4
   workup.STIRRINGthe mixture was stirred for one hour

Procedure

To this solution was added dropwise with ice-cooling 1.94 g (0.022 mole) of N,N'-dimethylethylenediamine and the mixture was stirred for 1 hour. Then to this solution was added with ice-cooling the dithiolate solution prepared in the manner shown below; To a mixture of 2.8 g (0.02 mole) of dimedone and 1.6 g (0.02 mole) of carbon disulfide in 15 ml of dimethylsulfoxide was added 2.7 g (0.044 mole) of powdered potassium hydroxide, and the mixture was stirred for one hour.

Source