public class Student
 {
  public int Id { get; set; }
  public string Name { get; set; } 
  public int Age { get; set; } 
 }

 public class StudentSecond
 {
  public int Id { get; set; }
  public string Name { get; set; }
  public int Age { get; set; } 
 }

private static TOut TransReflection<TIn, TOut>(TIn tIn)
  {
   TOut tOut = Activator.CreateInstance<TOut>();
   foreach (var itemOut in tOut.GetType().GetProperties())
   {
    var itemIn = tIn.GetType().GetProperties().Where(i => i.Name == itemOut.Name).FirstOrDefault();
    if (itemIn != null)
    {
     itemOut.SetValue(tOut, itemIn.GetValue(tIn));
    }
   }
   return tOut;
  }

StudentSecond ss= JsonConvert.DeserializeObject<StudentSecond>(JsonConvert.SerializeObject(s));

  Expression<Func<Student, StudentSecond>> ss = (x) => new StudentSecond { Age = x.Age, Id = x.Id, Name = x.Name };
  var f = ss.Compile();
  StudentSecond studentSecond = f(s);

ParameterExpression parameterExpression;
 Expression<Func<Student, StudentSecond>> ss = Expression.Lambda<Func<Student, StudentSecond>>(Expression.MemberInit(Expression.New(typeof(StudentSecond)), new MemberBinding[]
 {
  Expression.Bind(methodof(StudentSecond.set_Age(int)), Expression.Property(parameterExpression, methodof(Student.get_Age()))),
  Expression.Bind(methodof(StudentSecond.set_Id(int)), Expression.Property(parameterExpression, methodof(Student.get_Id()))),
  Expression.Bind(methodof(StudentSecond.set_Name(string)), Expression.Property(parameterExpression, methodof(Student.get_Name())))
 }), new ParameterExpression[]
 {
  parameterExpression
 });
 Func<Student, StudentSecond> f = ss.Compile();
 StudentSecond studentSecond = f(s);

private static Dictionary<string, object> _Dic = new Dictionary<string, object>();

  private static TOut TransExp<TIn, TOut>(TIn tIn)
  {
   string key = string.Format("trans_exp_{0}_{1}", typeof(TIn).FullName, typeof(TOut).FullName);
   if (!_Dic.ContainsKey(key))
   {
    ParameterExpression parameterExpression = Expression.Parameter(typeof(TIn), "p");
    List<MemberBinding> memberBindingList = new List<MemberBinding>();

    foreach (var item in typeof(TOut).GetProperties())
    {
     MemberExpression property = Expression.Property(parameterExpression, typeof(TIn).GetProperty(item.Name));
     MemberBinding memberBinding = Expression.Bind(item, property);
     memberBindingList.Add(memberBinding);
    }

    MemberInitExpression memberInitExpression = Expression.MemberInit(Expression.New(typeof(TOut)), memberBindingList.ToArray());
    Expression<Func<TIn, TOut>> lambda = Expression.Lambda<Func<TIn, TOut>>(memberInitExpression, new ParameterExpression[] { parameterExpression });
    Func<TIn, TOut> func = lambda.Compile();
    _Dic[key] = func;
   }
   return ((Func<TIn, TOut>)_Dic[key])(tIn);
  }