Isolation of the product with ethyl acetate shadowed by vanishing of solvent was applied.
The hierachical zeolite catalyst (MFI27_6) showed high yield (86%–96%) of DHPMs in a very short time (10–30 min).
It is considered the Balkan security problem within the framework of maintenance of national security by Italy and Russia and also the Balkans' position in the foreign policy of Italy and Russia in late XX - early XXI.
Finally it is made a conclusion that the Balkan vector is of great priority in the foreign policy line of Italy and Russia and that geopolitical stability of the Balkans takes a heavy toll on the security of Italy and Russia.
This page is created with the aim of helping travelers and tourists visiting Russia or traveling to Arkhangelsk Airport.
A sustainable, green one-pot process for the synthesis of dihydropyrimidinones (DHPMs) derivatives by a three-component reaction of β-ketoester derivatives, aldehyde and urea or thiourea over the alkali-treated H-ZSM-5 zeolite under ball-milling was developed.
Brochure of the Ministry of Foreign Affairs and International Cooperation of the Italian Republic.
The three-volume book is a narrative relying on eyewitness testimony and primary research material, as well as the author's own experiences as a prisoner in a gulag labor camp.Structurally, the text comprises seven sections divided (in most printed editions) into three volumes: parts 1–2, parts 3–4, and parts 5–7.At one level, the Gulag Archipelago traces the history of the system of forced labor camps that existed in the Soviet Union from 1918 to 1956, starting with V. Lenin's original decrees shortly after the October Revolution establishing the legal and practical framework for a series of camps where political prisoners and ordinary criminals would be sentenced to forced labor. [Russia and conflicts in the territory of former Yugoslavia]. Rossiya i konflikty na territorii byvshey Yugoslavii.