PORTLAND, Ore.--(BUSINESS WIRE)--Prudential Real Estate Investors announced today the acquisition of Block 300, a 361,805 square foot class A office property in Portland, Ore., on behalf of institutional investors. Prudential Real Estate Investors is the real estate investment management and advisory business of Prudential Financial, Inc. (NYSE:PRU), and operates as Pramerica Real Estate Investors in markets outside the Americas, Korea and Japan. Additional terms of the transaction were not dis