Hitler Ukraine demands to Stalin in June 1941?

[ShadowWave]

On nytimes.com, the following articles are available:

June 5,1941: TURKS HEAR HITLER THREATENS SOVIET; He Is Said to Plan a Drive Into Ukraine Unless Russians Open Granaries to Him ARMY MASSING REPORTED Reich, Rumania Said to Have 155 Divisions Ready -- Exodus From Bessarabia Rumored

June 14,1941:
MORE TROOPS MASS; Both Nazis and Russians Have Now Completed Huge Concentrations ROADS TO RUMANIA MINED Helsinki Hears Generals in Moscow Oppose Further Concessions by Stalin RUSSIA AND REICH SEEN NEAR CLASH

There is a paywall for these articles, so I don't know what they say inside. My only question is: Is there any evidence this actually happened, Hitler giving Stalin an ultimatum about the Ukraine, but Stalin refusing to give the concessions?

[wm]

It's all fake news, especially Generals in Moscow Oppose Further Concessions by Stalin is unbelievably naive.

[Max Payload]

My only question is: Is there any evidence this actually happened, Hitler giving Stalin an ultimatum about the Ukraine, but Stalin refusing to give the concessions?

I have never seen any evidence of this, and I would be surprised if it existed.
It may be that the story is conflating two things -

After a German-Soviet trade agreement in 1939 (essentially Soviet food and raw materials in exchange for German manufactures) Germany by 1941 had been slacking on its side of the deal while pressing Stalin for more, and
By the early summer of 1941 rumours of an impending Axis attack on the SU were rife, to the extent that on the same day as the second NYT article, Pravda published an article reassuring its readers that the rumours could be safely disregarded.

In any case Hitler must have known that Stalin would never voluntarily relinquish Ukraine, and since preparations for the invasion, including the occupation of Ukraine, were well advanced the last thing he would have wanted would be to spook Stalin into further last-minute military preparations.

[GregSingh]

German language press did mention these rumors and blamed England.

England versucht durch unwahre Gerüchte über die Ukraine das Verhältnis Deutschlands zu Rußlands zu trüben
England tries by untrue rumors about Ukraine to tarnish Germany's relationship with Russia

[Art]

Vishlev (1992) stated that rumors were initiated by Germans as a part of desinformation campaign. In any case they were widespread in press, diplomatic circles and intelligence reports.

[Max Payload]

The original question posed was -

Is there any evidence this actually happened, Hitler giving Stalin an ultimatum about the Ukraine, but Stalin refusing to give the concessions?

Clearly there was no ultimatum, but if there were rumours of an ultimatum;

Vishlev (1992) stated that rumors were initiated by Germans as a part of desinformation campaign.

Did Vishlev explain why, just days before the commencement of Barbarossa, the authorities in Germany concluded that it would be in Germany’s interests to start a rumour that Hitler was giving Stalin an ultimatum about the Ukraine?

[Art]

Vishlev says that the purpose was to hide a leaf in the forest, that is to create a flow of "fake news" which would be impossible to tell from genuine information.

[Yuri]

Goebbels wrote in his diary in may 1941: we are so confused that they themselves can not understand where the truth and where the lie.