UPDATE 2-GE shares climb 6 pct on analyst upgrades

* Bernstein, Oppenheimer up GE to "outperform"

* Bernstein sees major divestitures over next 2-3 years

* Oppenheimer sees favorable entry point after slide (Adds second upgrade, updates shares)

BOSTON, Nov 6 (Reuters) - Shares of General Electric Co (GE.N: Quote, Profile, Research) rose 6 percent on Friday after two analysts raised their ratings on the largest U.S. conglomerate to "outperform."

The world's top maker of jet engines and electricity-producing turbines is likely to sell off businesses generating $25 billion to $30 billion of revenue -- almost one-fifth of the company -- over the next two to three years as it focuses on its core infrastructure operations, according to Bernstein Research analyst Steven Winoker.

"Much of the bet on GE is a bet on the company's ability to reinvest proceeds in enterprises that add value for shareholders," Winoker wrote in a note to clients.

Winoker hiked his price target on GE shares, which he had previously rated "market perform," to $19 from $18.

Oppenheimer analyst Christopher Glynn also boosted his rating on GE to "outperform" from "perform" and raised his price target to $18 from $17.

"GE shares have underperformed the market significantly since the middle of October and we believe are at a favorable entry point," Glynn wrote.