Aromatic amine is generally less nucleophilic than aliphatic amine because of the aromatic delocalisation of the lone pair. Ketones are also less reactive compared to aldehyde.

Few common methods you may wish to consider to push the reaction forward:

1. Heat

2. Use a drying agent to remove the water formed in the reaction. Molecular sieves, Dean-Stark distillation, chemical agent etc

I suppose you are trying a reductive amination or some sort of imine formation?

Those are indeed quite hard with aromatic amines. I remember using MgSO4 as a drying agent and a strong acid as catalyst (TFA, 1 equivalent) for similar reactions. 

I would try that first before you redesign your molecules

Acid or bases can catalise this reaction. Acid catalisis: dissolve equimolar quantities of amine and ketone in a glassic acetic acid and boil this mixture with a slow simultaneuus distillation of AcOH whule almoust all solvent distill off. Add a soda and crystallise the product fron neitral medium (acid medium can decompose your product). Base catalisis: try to carry out the reaction in Pyridine with 2-3% Et3N as it was with AcOH (slow distiilation off the solvent)/ But it depends of activity of amine and ketone. Acetopphenone and aniline will react, but if amine has electon-withdrawing groups in the ring, or ketone is DIaromatic(benzophenone derivative) , or amine has some bulky groups in ortho position (steric factor) rection may go very slow or will not go at all. Ketones are not aldehydes they are much less reactive 

As  Eugene Yang mentioned: 

Aromatic amine is generally less nucleophilic than aliphatic amine because of the aromatic delocalisation of the lone pair. Ketones are also less reactive compared to aldehyde. I recommend using acid catalyzed reaction such as using acetic acid as a solvent or you may using  Molecular sieves, Dean-Stark distillation.

I suggest you use toluene as solvent, p-TSA as acid catalyst and dean-stark distillation to remove the water, as you will need heat, catalyst and removal of water to drive the reaction to completion. Should work fine assuming that the ketone or amine are not too stericly hindered.

Yes, reaction is possible and the product is imine / Schiff Base. 

The class of reactions between aromatic amines and aromatic ketones is the most difficult one among the Schiff base formation reactions and takes very long time for completion. Sometimes it may require two / three days of refluxing.

Procedures for carrying out these type of reactions have already been suggested by other participants in this discussion earlier. For further information you may please search for patent literature. There are quite a few patents on this subject.

Thanks all for your suggestions.

The reaction can be achieved and the imine is the desired product, I you propose the use solvent free condition with an excess of ketone (4 equivalent for example) in the presence of acid as catalyst.

Reaction between aromatic amine and aromatic ketone is possible leading to the formation of Schiff,s base in aq. ehtanolic solution.

Thanks all. I made a mistake in writing the question. the desired reaction is actually between an aromatic amine and a ketocyclohexane, not aromatic ketone. can i use the same conditions as described for aromatic ketone? Thanks for feedback.

Reaction between aromatic amine and aromatic ketone is Chiff,s base formimg reaction . See the procedure given in  ref. Text book of Practical Organic Chemistry, by A.I.Vogel.?

Thanks dear Madhukar