using System;

using Newtonsoft.Json;

​

public class Program

{

    public static void Main()

    {

        Class1 class1 = new Class1(){

            SomeString = "test"

        };

        string class1String = JsonConvert.SerializeObject(class1);

        Class2 result = JsonConvert.DeserializeObject<Class2>(class1String);

        Console.WriteLine(result);

        Console.WriteLine(result.ThisDoesntMatch);

        Console.WriteLine("test");

    }

    public class Class1 {

        public string SomeString {get; set;}    

    }

    public class Class2 {

        public string ThisDoesntMatch {get; set;}

    }

}