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Reaction of 1,3-bis(dimethylamino)trimethinium perchlorate (1) with 3-substituted prop-2-ynals (4) in acetic anhydride at the presence of ZnBr2 gives upon hydrolysis 1-substituted 2,4,6-triformylbenzenes (6) in low to moderate yield. This reaction is restricted to prop-2-ynals bearing electron rich aromatic substituents at the 3-position.

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The article is focused at the most important elements of the US foreign policy towards the Middle East during the administration of George W. Bush (2001 - 2009). The text has two parts. The first part shows three important influences on creation and formulation of the US foreign policy towards the region. At the first place it was an effort to preserve unipolar character of the international system, hegemonic possition of the USA and its dominance in all regions. The second source was specific decision-making process set up by president Bush and the third source of the Bush strategy was a partial transformation of the US longtime policy towards the Middle East. The second part of the article discuss results of the Bush doctrine in the region. The text is focused at five most important consequences of the US foreign policy, which are the fight against proliferation of weapons of mass destruction, the pursuit of the democratization throughout the region, the Israel-Palestinian conflict, regional "cold war" between Iran and Saudi Arabia and finally the struggle to stabilize the post-conflict Iraq.

The article deals with deterrence of terrorism. The aim is to assess validity of a proposition that it is possible to deter terrorist groups, but there are some specifics in comparison to the deterrence of states. First, we determine deterrence threats which can be applied in relation to terrorist groups and discuss possible restraints of their application in practice. This is followed by an analysis of whether deterrence can be applied against all types of terrorist groups without distinction, where we develop a model of classification of terrorist groups according to the goals which they pursue. So far, the topic of deterrence of terrorism has not been discussed in detail in the Czech academic texts. This article thus seeks to fill this lacuna and highlight the benefits of applying deterrence strategy to the terrorist groups.