Chinakhov’s breakaway extended the lead to 3-0 at 16:42.
Marchenko made it 4-0 at 4:51 of the third period during a 5-on-3 power play.
“It’s impressive, but I’m not surprised, let’s put it [that] way, that they came together today, the way they played,” Columbus coach Pascal Vincent said. “Everybody chipped in. Everybody had a good game. We played really well as a team, and our goalie was really good when we needed him to [be].
“I’m happy about it, but not overly surprised. Regardless of the score, just the way we’ve played … these are the guys we have, [and] I’m telling you they’re good people and they want to be here and they want to do well.”
Poitras cut it to 4-1 at 8:24 off a feed from Charlie McAvoy. It was the rookie’s fifth goal of the season.
Danforth gave the Blue Jackets a 5-1 lead with an empty-net goal at 13:41 before Beecher scored at 17:40 for the 5-2 final.
“We got a little bit loose defensively, a little loose with the puck,” Bruins captain Brad Marchand said. “Probably our biggest problem this year is we give up too many odd-man rushes. That was a big problem tonight. … We need to be much tighter all over the ice defensively.
“In this league, now especially, there’s so much parity. You see it tonight and every night -- a last-place team can win any night, so you have to be dialed in on the details.”
NOTES: Columbus ended a six-game skid against Boston (0-3-3). It hadn’t defeated the Bruins since Jan. 14, 2020. … Chinakov, Voronkov and Blue Jackets forward Cole Sillinger were each plus-3; Marchand and Boston center Pavel Zacha were each minus-3. … Columbus forward Boone Jenner had two assists, and forward Patrik Laine had an assist and five shots on goal. … McAvoy’s assist was his 200th in the NHL in his 397th game.