Dereck Whittenburg scored eight of his 22 points on free throws in double overtime as North Carolina State defeated Pepperdine, 69-67, last night in Corvallis, Ore., in the first round of the NCAA basketball tournament.

In the first game of the doubleheader, Rich Simkus scored 20 points, four on free throws near the end, and teammate Craig Robinson had 20 to lead Princeton to a 56-53 upset of Oklahoma State.

North Carolina State (21-10) will play Nevada-Las Vegas Sunday. Princeton (19-8) plays Boston College.

The Wolfpacks' Terry Gannon tied the score at 47 with 2:30 left in regulation, sinking a 20-foot jumper. State, which last week upset defending NCAA champion North Carolina and Virginia, tried to freeze the ball for a last shot but lost it out of bounds with two seconds left. Pepperdine was unable to get off a shot.

Pepperdine (20-9) led by as many as six points in the first overtime, but State's Cozell McQueen banked in a shot with eight seconds left for a tie at 59, forcing the second overtime.

Thurl Bailey scored 17 points and Lorenzo Charles 14 for State. Bill Sadler's 19 led Pepperdine.

Simkus, a 6-foot-9 senior who had averaged only 7.3 points going into his game, sank two free throws with 34 seconds left to give Princeton a 52-49 lead and made two with 17 seconds to play for a 54-51 lead.

Guard Matt Clark, whose 15 points led the Cowboys (24-7), worked inside for a basket with six seconds left to make it 54-43. But Princeton's Gordon Enderle made two free throws with three seconds left to ensure victory.

East: Senior Leo Rautins made eight of 10 shots in the first half and Syracuse defeated Morehead State (Ky.), 74-59, in a first-round game in Hartford, Conn.

In the second game of the doubleheader, guard Rich Brunson, who had seven points, keyed a second-half rally as Rutgers came from nine points down to upset Southwestern Louisiana, 60-53.

"When somebody is going good, we just keep feeding him the ball," said Syracuse guard Erich Santifer.

Rautins scored 10 straight points for the Orangemen (21-9) midway through the half to give them a 22-14 lead. He had with a game-high 21 points and six rebounds.

Syracuse will meet Ohio State (19-9) in the second round Sunday. Rutgers plays St. John's (27-4)

Syracuse's pressing defense intimidated the Eagles (19-11) and limited their high-scoring Guy Minifield to two field goals in the first half. Minifield, who had 12 points, didn't make a shot until 13:54 into the game.

Morehead State closed to 41-37 with 3:17 gone in the second half, outscoring Syracuse, 10-2. Forward Earl Harrison, who led the Kentucky team with 17 points, opened the drive with two straight 15-footers.

In the next 7:18, Syracuse regrouped its hustling defense and got its fast-break offense rolling, and--led by dunks from Santifer and Rafael Addison--started a 19-6 scoring run.

Brunson's layup off a long pass from Kevin Black early in the half tied the score at 33 and Rutgers (23-7), by scoring eight straight points, took a 35-33 lead on Black's free throw 3:40 gone in the half.

The defense held Southwestern Louisiana (22-7) scoreless for the first 5:22 of the half and in the last 20 minutes shut out freshman George Almones, who scored 13 points in the first half.

After a tie at 39, neither team scored for almost four minutes. Then Rutgers, sparked by John Battle's two jump shots, went on a 10-2 run.

Mideast: In Evansville, Ind., Dale Ellis scored 20 points and Michael Brooks made four free throws in the final minute to lead Tennessee to a 57-56 victory over Marquette in the first round of the regional tournament.

Chucky Barnett scored 26 points and David Little provided a late second-half lift to carry Oklahoma to a 71-63 victory over Alabama-Birmingham in the second game.

The Vols (20-11) play in Sunday's second round against Louisville, while the Sooners (24-8) will play Indiana. It was the final game for Warriors Coach Hank Raymonds, who announced his retirement earlier this season.

Marquette (19-10) had a chance to tie but its leading scorer, Glenn Rivers, made only one of two free throws with 20 seconds left.

Rivers then fouled Brooks, an 80 percent free-throw shooter, with five seconds to go, and the junior guard sank both one-and-ones to clinch it. Kerry Trotter's layup with a second left gave Marquette its last points.

Ellis also contributed five straight free throws during a 5 1/2-minute stretch at the end when the Volunteers scored seven straight points.

UAB (19-14) stayed in its contest on the long-range shooting of Luellen Foster, who had 20 points, and McKinley Singleton, who had 18, until the Sooners pulled away in the final 2:30 on a 10-4 run with Barnett getting six. Oklahoma star freshman Wayman Tisdale, plagued by fouls and a zone defense, had 17 points.