using System;

using System.Collections.Generic;

using System.Linq;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

public class Program

{

    public static void Main()

    {

        string json = @"{

  ""Data1"": {

    ""SPECIAL"": ""QQ01"",

    ""AA"": ""QQ"",

    ""BB"": ""QQ"",

    ""Data2"": [

      {

        ""SPECIAL"": ""QQ02"",

        ""AA"": ""QQ"",

        ""BB"": ""QQ"",

        ""CC"": ""QQ"",

        ""Data3"": [

          {

            ""SPECIAL"": ""QQ03"",

            ""AA"": ""QQ"",

            ""CC"": ""QQ"",

            ""Data4"": [

              {

                ""SPECIAL"": ""QQ04"",

                ""AA"": ""QQ"",

                ""CC"": ""QQ"",

                ""Data5"": [

                  {

                    ""SPECIAL"": ""QQ05"",

                    ""AA"": ""QQ"",

                    ""CC"": ""QQ"",

                    ""Data6"": [

                      {

                        ""SPECIAL"": ""QQ06"",

                        ""AA"": ""QQ"",

                        ""CC"": ""QQ""

                      }

                    ]

                  },

                  {

                    ""SPECIAL"": ""QQ07"",

                    ""AA"": ""QQ"",

                    ""CC"": ""QQ"",

                    ""DD"": ""QQ"",

                    ""Data7"": [

                      {

                        ""SPECIAL"": ""QQ08"",

                        ""AA"": ""QQ"",

                        ""CC"": ""QQ"",

                        ""Data8"": [

                          {

                            ""SPECIAL"": ""QQ09"",

                            ""AA"": ""QQ"",

                            ""BB"": ""QQ"",

                            ""CC"": ""QQ""

                          }

                        ]

                      }

                    ]

                  }

                ]

              }

            ]

          }

        ]

      }

    ]

  },

  ""Data9"":

  {

    ""SPECIAL"": ""QQ10"",

    ""AA"": ""QQ"",

    ""BB"": ""QQ"",

    ""CC"": ""QQ"",

    ""Data10"":

    {

        ""SPECIAL"": ""QQ11"",

        ""AA"": ""QQ"",

        ""BB"": ""QQ"",

        ""CC"": ""QQ"",

        ""Data11"":

        {

            ""SPECIAL"": ""QQ12"",

            ""AA"": ""QQ"",

            ""BB"": ""QQ"",

            ""CC"": ""QQ""                  

        }

    }

  }

​

}";

        var list = 

            JObject.Parse(json)

            .Descendants()

            .OfType<JProperty>()

            .Where(prop => prop.Value.HasValues)

            .Select(prop =>

            {

                var parentName = prop.Ancestors()

                                     .OfType<JProperty>()

                                     .Where(p => !(p.Value is JArray && ((JArray)p.Value).Count > 1))

                                     .Select(p => p.Name)

                                     .FirstOrDefault();

                var obj = new JObject(new JProperty("Current Property", prop.Name));

                obj.Add(new JProperty("Immediate Ancestor Property Name", parentName ?? ""));

                return obj;

            })

            .ToList();

        for (int i = 0; i < list.Count; i++)

        {

            Console.WriteLine("list[" + i + "]:");

            Console.WriteLine(list[i].ToString(Formatting.None));

            Console.WriteLine();

        }

    }

}