Independiente, with 23 points from 10 matches, remained top of the Argentine Clausura championship, two points ahead of Godoy Cruz, who beat champions Banfield 2-0 at home in Mendoza.
The leaders, also playing on a rain-drenched pitch, needed 77 minutes to break down Central's resistance and particularly that of goalkeeper Hernan Galindez.
Left-back Lucas Mareque broke the deadlock when he attacked down the middle, side-stepped a defender and hit a left-foot shot from outside the box into Galindez's top right corner.
Striker Lionel Nunez, who had come on in the 70th minute for captain Dario Gandin, made the points safe for coach Americo Gallego's side eight minutes later when he steered a shot under Galindez into the net.
The pitch at Boca's Bombonera stadium, heaving to the rhythm of the home fans' jumping and chanting, was like a huge pond with the ball stopping dead at every kick.
Referee Hector Baldassi judged the condition of the pitch too dangerous to continue. He and his assistants were also unable to see the lines on the field. The remaining 81 minutes are now expected to be played on Thursday.
Godoy Cruz went ahead with a header by defender Leonardo Sigali from a corner after 18 minutes and they increased their lead when midfielder David Ramirez unleashed a shot from 35 metres that dipped under the bar in the 74th.
BOSELLI BRACE
Estudiantes won 3-1 away to bottom team Atletico Tucuman with two goals by striker Mauro Boselli. Atletico substitute Claudio Vargas was sent off in the 66th minute.
Former Argentina captain Diego Simeone appeared to have enjoyed a stay of execution as San Lorenzo coach when Alejandro Gomez scored twice, including a last-minute equaliser, for a 2-2 draw at home to Colon on Saturday.
Simeone, who has already steered Estudiantes and River Plate to league titles, has had a poor run with San Lorenzo, who are in the bottom half of the standings with 11 points.
Colon played for an hour with 10 men after midfielder German Rivarola was sent off. Gomez was also shown the red card for taking off his shirt as he celebrated his 90th-minute second goal.
Chacarita Juniors coach Fernando Gamboa did not enjoy the same luck as Simeone and was sacked after Friday's 2-0 loss at Huracan, his team's fourth consecutive defeat.
