The UOC-KP and its deposed but self proclaimed Patriarch is not recognized as canonical by any world wide canonical automonous or autocephalous Orthodox Catholc Church in the world.
During the communist years Filaret had close ties with the KGB and as such expected to be the next MP after the death of Pimen. In those years he was very much the Russophile and openly flaunted the fact that as a bishop he had a wife and children. He only became a Ukrainophile after he lost the election for the MP. After swearing an oath on the Gospel to live out his life as a simple Monk he returned back to Ukraine and immediately started to play upon the fierce nationalism, ethnic hatred, and political situation in Ukraine to work against the UOC-MP. He had the backing of his close friend Kravchuk.
To read more about him and his church access -
The Ukrainian Orthodox Church of the Kyivan Patriarchate (UOC-KP)
The UOC-KP, the second largest Orthodox church with 1300 parishes and 1600 priests, is rooted in the eastern and central Ukraine and in the region of Volhynia. Enjoying considerable popular support, it emerged in 1992 when the Ukrainian Autocephalous Orthodox Church (UAOC) joined a breakaway faction of the Moscow Patriarch Church under recently ousted Metropolitan Filaret. (Overnight he metamorphosed from an anti-Ukrainian, Soviet church bureaucrat into a militant nationalist, following the vote of 90 percent of Ukrainians for independence.) Church historian Bohdan Bociurkiw terms the UOC-KP “a quasi-state church.” Staunchly patriotic in its use of Ukrainian and in its unequivocal support of independent Ukrainian statehood, it was actively protected by Filaret’s political ally, former President Leonid Kravchuk. From the start the UOC-KP has been riddled by scandal. Its first two Patriarchs, aged Mstyslav (Skrypnik) of the U.S. UAOC diaspora, who died in 1993, and Volodymyr, formerly Vasyl Romanyuk, who had spent 19 years in prison as a religious dissident, were both deeply disillusioned by Filaret’s shortcomings. Filaret has failed to obtain coveted canonical recognition, and he has developed ties with dubious ultranationalist elements, such as the Ukrainian National Self-Defense Organization (UNSO), set on exploiting the church for political ends. As a result, five UOC-KP bishops reestablished the UAOC in 1993, and five more UOC-KP bishops returned to the UOC-MP fold in 1994. When Patriarch Volodymyr tried to dismiss Filaret for insubordination and for his involvement in the disappearance of three million rubles from diocesan coffers, Filaret threatened his titular superior. Before the issue could be resolved, Patriarch Volodymyr died on 14 July 1995, apparently of a heart attack. Police and UNSO members in military uniforms intervened in his funeral on 18 July, injuring 70 participants and suffering two fatalities in a clash over his final resting place (St. Sophia Cathedral ultimately, or under a nearby sidewalk just outside the cathedral wall where the body presently is interred?). When Filaret was elected, unopposed, as Volodymyr’s successor in October 1995, five more bishops and 20 lay electors revolted and joined the UAOC. Filaret’s latest strategy has been to seek reapproachment with the Ukrainian Eastern-Rite Catholic Church. He was the only Orthodox hierarch present at the consecration of the new head of that church, Exarch Lubomir Husar of Kyiv, on 3 June 1996. Ukrainian Catholics have come under criticism for welcoming him, given his rabidly hostile attitude towards Catholics in Communist days.
After the death of Patriarch Pimen Filaret expected to become the next Patriarch of Moscow. However, this was a free election which was not controlled by the communists. Because of that Filaret did poorly.
A Long Walk To Church - A Contempory History Of Russian Orthodoxy -
In the first ballot Alexi received 139 votes, Vladimir 107, anf Filaret 66. In the runoff vote Alexi received 166 of the 309 valid votes, and Vladimir received 143. Alexi was declared elected.
His act of excommunication can be accessed at -http://www.russian-orthodox-church.org.ru/sobor09e.htm#6