Here is the quick code that i use when i have to build a console application that connects to dynamics crm onpremise version with AD/IFD Authentication.

Main Class:

ClientCredentials _clientCreds = new ClientCredentials();
_clientCreds.Windows.ClientCredential.UserName = ConfigurationManager.AppSettings["username"];
_clientCreds.Windows.ClientCredential.Password = ConfigurationManager.AppSettings["password"];
_clientCreds.Windows.ClientCredential.Domain = ConfigurationManager.AppSettings["domain"];
var organizationUri = ConfigurationManager.AppSettings["CRMUrl"];

_service = (IOrganizationService)new OrganizationServiceProxy(new Uri(organizationUri), null, _clientCreds, null);

OrganizationServiceContext _orgContext = new OrganizationServiceContext(_service);

App.Config:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="AppSettings" type="System.Configuration.AppSettingsSection, System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" restartOnExternalChanges="false" requirePermission="false" />
</configSections>
<appSettings>
<add key="CRMUrl" value="https://Oranization.com/XRMServices/2011/Organization.svc" />
<add key="Username" value="rawishkumar" />
<add key="Password" value="password" />
<add key="Domain" value ="exampledomain"/>
</appSettings>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2"/>
</startup>
</configuration>

Required Assemblies:

using System.ServiceModel.Description;

using System.Configuration;

using Microsoft.Xrm.Sdk;

using Microsoft.Xrm.Sdk.Client;

Hope this helps!