World Youth bronze medallist Dossen, pictured, progressed to the last-eight after a hard-earned but deserved victory over a home favourite.
The Olympic BC welter beat Russia’s European Junior champion Ivan Stupen on a split decision at the Black Sea Port to join Tommy Hyde in the quarter-finals.
The Galway teen will face an Armenian opponent on St Patrick’s Day for at least bronze.
Limerick welter Harty was beaten by Kazakh Aldivr Turnsinay on a unanimous verdict over three, three minute rounds.
“It was a fantastic performance from Gabriel and a brave performance from Jason against a quality opponent,” said Irish coach Billy McClean who is working Ireland’s corner in Anapa with Fergal McKenna.
Irish captain Aaron McKenna and Patrick Donovan, a World Junior silver medallist, are in action tomorrow.
Pavlyukov Youth Memorial Anapa, Russia March 15th/20th
March 15th
Last 16
69kg Gabriel Dossen (Ireland) beat Ivan Stupen (Russia) 3-2
69kg Jason Harty (Ireland) lost to Aldivr Turnsinay (Kazakhstan) 0-5
March 16th
Last 16
64kg: Aaron McKenna (Ireland) v Pavel Kamgnin (Estonia)
64kg: Patrick Donovan (Ireland) v Denik Nikogosyan (Armenia)
Q/Final
60kg: Eamer Coughlan (Ireland) v Otar Naveriani (Georgia)
March 17th
Q/Finals
69kg: Gabriel Dossen (Ireland) v TBC (Armenia)
75kg: Tommy Hyde (Ireland) v Aleksei Alferor (Belarus)
Irish Squad
60kg Eamer Coughlan (Riverstown)
64kg Patrick Donovan (OLOL)
64kg Aaron McKenna (Old School)
69kg Gabriel Dossen (Olympic)
69kg Jason Harty (Rathkeale)
75kg Tommy Hyde (Setanta)
Team manager: Robbie Redmond
Coaches: Billy McClean and Fergal McKenna
R&J: Martin O’Neill