Is it possible to die from raynaud's phenomenon?

Very unlikely: Raynaud's phenomenon decreases blood flow to the fingers, toes, nose, ears, or nipples, but the rest of the body should be ok. It would be very unusual to die from raynaud's phenomenon. Hypothetically, if a person got gangrene in a finger or toe, then got infected there, and was unable to get any treatment, his infection could spread to the rest of his body, leading to death by sepsis.

No: By definition raynaud's phenomena does not cause organ damage nor is associated with life threatening diseases. Raynaud's syndrome is associated with other diseases like sle or systemic sclerosis that can be life threatening.

See below: You can die from some of the diseases associated with raynauds, but it would unusual from raynauds unless you developed digital ulcers that became infected and you had complications from the infection.