Celtic came from behind to make it four wins out of four in the SPFL Development League on Tuesday evening.
Josh Skelly gave Dundee an early lead at Cappielow but Callum McGregor equalised and Aidan Nesbitt sealed a 2-1 Celtic victory with a 53rd-minute goal.
St Johnstone are two points behind in second place after beating Ross County 3-0 at McDiarmid Park, with goals from Brad McKay, Liam Caddis and Eoghan McCawl.
Jordan Moore hit a hat-trick for Dundee United against Rangers at Glebe Park but they had to settle for a share of the spoils in a 3-3 draw. Jamie Brandon, Dylan Dykes and Ross Lyon scored for Ian Durrant's team.
Dunfermline Athletic notched up a 5-1 win against St Mirren in Paisley, helped by a double from Mickael Antoine-Curier. Shaun Rooney, Ryan Wallace and Paul Joseph Crossan were also on target for the Pars, with Lewis McLear scoring for Saints.
Partick Thistle enjoyed a 4-2 victory over Hibernian at Ainslie Park, with goals from James Penrice, Michael McMullin, Matthew McInally and an own goal. Adam Watson and Aaron Dunsmore scored for Hibs.
Falkirk and Hamilton Accies drew 3-3 at the Falkirk Stadium. Cameron Blues, Ryan Blair and Kevin O'Hara scored for the Bairns, with Greg Docherty, Eamonn Brophy and Martin Canning on target for Accies.
Motherwell hit back to draw 2-2 with Kilmarnock at Almondvale. Dean Hawkshaw and Aaron Splaine scored for Killie before the break but Theo Robinson and Dylan Mackin replied for Stephen Craigan's team in the second half.
The match between Inverness Caley Thistle and Aberdeen was rearranged for Thursday September 24 while Hearts were the team without a fixture this week.