782 research outputs found
On the Dirichlet problem for a mixed-type equation of the second kind with strong degeneration
By separation of variables, we construct particular solutions of an equation of mixed elliptic-hyperbolic type of the second kind with strong degeneration in a rectangular domain. We pose certain transmission conditions on the singular line. The constructed solutions satisfy the equation in the entire mixed domain and are used to study the uniqueness of the solution of the Dirichlet problem for this domain. Β© 2013 Pleiades Publishing, Ltd
Physical work capacity of athletes with different types of adaptation of the cardiorespiratory system
Indices of physical work capacity in athletes with different types of adaptation of the cardiorespiratory system that are engaged in various kinds of sports and have sports ranks from Master of Sports to Grade 2 have been studied. It has been shown that the highest physical work capacity is typical of athletes that have the inotropic type of adaptation, and the lowest, of athletes with the chronotropic type of adaptation. High indices of physical work capacity were recorded in athletes with the respiratory type of adaptation. Types of adaptation affect the indices of physical work capacity, and it is possible to forecast sports results on their basis. Β© MAIK Nauka 2008
Mulheres mils impact assessment : building research capacity across nations; a reflection paper for the 2013 IDRC Canadian Learning Forum
Given the distinction between knowledge for understanding and knowledge for action, it is arguable that additional criteria should be considered in defining and promoting research excellence in development contexts. Research excellence for development is, or should be, rigorous, adhering to foundational standards of ethics, and as well, include knowledge for action β enhancing capacity building, and helping communities to create the capacity to act. The Mulheres Mil program (meaning a thousand strong women) successfully worked to improve womenβs quality of family life, economic opportunities and greater participation in the political process
The conflictual dynamics of polities and ethnopolitogenesis
Β© Medwell Journals, 2016.The study puts forward the idea of relationship of polities dynamics with ethnogenetic dynamics that allows to suggest the existence of ethnopolitogenesis as a single process. The ethnogenetic dynamics is expressed by the fact that the ethnicity undergoes throughout its life a series of age phases, stable periods and phase transitions separating these periods-unstable crisis periods, for which is specific large-scale domestic conflicts and major military defeats of the state established by it. The ethnogenetic dynamics is determined by the population qualitative composition dynamics, i.e., by the dynamics of the proportion of the individuals of different energy types as the part of the ethnic group. It's developed a universal and invariant regularity with regard to polity types, ethnicities and historic epochs, linking the polity dynamics in its conflictual aspect with the dynamics of population quality, the numerical algorithm of ethnopolitogenesis. The following hypothesis is stated that at the bottom of the algorithm existence is the synchronization dynamics quality by climatic cycles associated with solar activity cycles
ΠΠΠΠΠ’ΠΠ§ΠΠ‘ΠΠΠ ΠΠ‘ΠΠΠ ΠΠ ΠΠΠ Π ΠΠΠΠΠΠ‘ΠΠΠ ΠΠ ΠΠΠΠ‘
The article is devoted to the analysis of the features of a ratherΒ specifi c project of Islamism promoted by the Islamic Republic of Iran. IranianΒ Islamism is based on the ideas of Ayatollah Khomeini about the idealΒ βIslamic stateβ, in which Islam has close contact with politics, with the governmentΒ of the country. However, after the death of Ayatollah Khomeini, theΒ countryβs new elite became more pragmatic about the mission of spreadingΒ the Shiβite version of Islam. In particular, emphasis was placed on rapprochementΒ with those countries and groups that showed friendly feelingsΒ to Tehran. In many respects this concerned the countries of the Arab regionΒ in which the Shiβa community was present or prevailed. One of these statesΒ is Yemen. In particular, Iranβs participation in the Yemeni crisis, in whichΒ Tehran is trying to strengthen its own positions and prevent the strengtheningΒ of Saudi positions in Yemen by means of the Zaydi group of the Houthi,Β is being considered.Π‘ΡΠ°ΡΡΡ ΠΏΠΎΡΠ²ΡΡΠ΅Π½Π° Π°Π½Π°Π»ΠΈΠ·Ρ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠ΅ΠΉ Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎ ΡΠΏΠ΅ΡΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΡΠΎΠ΅ΠΊΡΠ° ΠΏΠΎΠ»ΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΈΡΠ»Π°ΠΌΠ°, ΠΏΡΠΎΠ΄Π²ΠΈΠ³Π°Π΅ΠΌΠΎΠ³ΠΎ ΠΡΠ»Π°ΠΌΡΠΊΠΎΠΉ Π Π΅ΡΠΏΡΠ±Π»ΠΈΠΊΠΎΠΉΒ ΠΡΠ°Π½. Π ΠΎΡΠ½ΠΎΠ²Π΅ ΠΈΡΠ°Π½ΡΠΊΠΎΠ³ΠΎ ΠΈΡΠ»Π°ΠΌΠΈΠ·ΠΌΠ° Π»Π΅ΠΆΠ°Ρ ΠΈΠ΄Π΅ΠΈ Π°ΡΡΠΎΠ»Π»Ρ Π₯ΠΎΠΌΠ΅ΠΉΠ½ΠΈ ΠΎΠ± ΠΈΠ΄Π΅Π°Π»ΡΠ½ΠΎΠΌ Β«ΠΈΡΠ»Π°ΠΌΡΠΊΠΎΠΌ Π³ΠΎΡΡΠ΄Π°ΡΡΡΠ²Π΅Β», Π² ΠΊΠΎΡΠΎΡΠΎΠΌ ΠΈΡΠ»Π°ΠΌ Π½Π°Ρ
ΠΎΠ΄ΠΈΡΡΡ Π² ΡΠ΅ΡΠ½ΠΎΠΌ ΡΠΎΠΏΡΠΈΠΊΠΎΡΠ½ΠΎΠ²Π΅Π½ΠΈΠΈ Ρ ΠΏΠΎΠ»ΠΈΡΠΈΠΊΠΎΠΉ, Ρ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ ΡΡΡΠ°Π½ΠΎΠΉ. ΠΠΎΡΠ»Π΅ ΡΠΌΠ΅ΡΡΠΈ Π°ΡΡΠΎΠ»Π»Ρ Π₯ΠΎΠΌΠ΅ΠΉΠ½ΠΈ Π½ΠΎΠ²Π°Ρ ΡΠ»ΠΈΡΠ° ΡΡΡΠ°Π½Ρ ΠΏΡΠΎΠ΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΠΎΠ²Π°Π»Π° Π±ΠΎΠ»Π΅Π΅ ΠΏΡΠ°Π³ΠΌΠ°ΡΠΈΡΠ½ΠΎΠ΅ ΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠ΅Β ΠΊ Π²ΠΎΠΏΡΠΎΡΡ ΠΎ ΠΌΠΈΡΡΠΈΠΈ ΠΏΠΎ ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½Π΅Π½ΠΈΡ ΡΠΈΠΈΡΡΠΊΠΎΠΉ Π²Π΅ΡΡΠΈΠΈ ΠΈΡΠ»Π°ΠΌΠ°. Π ΡΠ°ΡΡΠ½ΠΎΡΡΠΈ, ΡΡΠ°Π²ΠΊΠ° Π±ΡΠ»Π° ΡΠ΄Π΅Π»Π°Π½Π° Π½Π° ΡΠ±Π»ΠΈΠΆΠ΅Π½ΠΈΠ΅ Ρ ΡΠ΅ΠΌΠΈ ΡΡΡΠ°Π½Π°ΠΌΠΈ ΠΈ Π³ΡΡΠΏΠΏΠ°ΠΌΠΈ, ΠΊΠΎΡΠΎΡΡΠ΅Β ΠΏΡΠΎΡΠ²Π»ΡΡΡ ΠΊ Π’Π΅Π³Π΅ΡΠ°Π½Ρ Π΄ΡΡΠΆΠ΅ΡΠΊΠΈΠ΅ ΡΡΠ²ΡΡΠ²Π°. ΠΠΎ ΠΌΠ½ΠΎΠ³ΠΎΠΌ ΡΡΠΎ ΠΊΠ°ΡΠ°Π΅ΡΡΡ ΡΡΡΠ°Π½ ΠΡΠ°Π±ΡΠΊΠΎΠ³ΠΎ ΡΠ΅Π³ΠΈΠΎΠ½Π°, Π² ΠΊΠΎΡΠΎΡΡΡ
ΠΏΡΠΈΡΡΡΡΡΠ²ΡΠ΅Ρ Π»ΠΈΠ±ΠΎ ΠΏΡΠ΅ΠΎΠ±Π»Π°Π΄Π°Π΅Ρ ΡΠΈΠΈΡΡΠΊΠ°Ρ ΠΎΠ±ΡΠΈΠ½Π°. ΠΠ΄Π½ΠΈΠΌ ΠΈΠ· ΡΠ°ΠΊΠΈΡ
Π³ΠΎΡΡΠ΄Π°ΡΡΡΠ² ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΠ΅ΠΌΠ΅Π½. Π ΡΡΠ°ΡΡΠ΅ ΠΏΠΎΠ΄ΡΠΎΠ±Π½ΠΎ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΡΡΡ Π²ΠΎΠΏΡΠΎΡ ΠΎΠ± ΡΡΠ°ΡΡΠΈΠΈ ΠΡΠ°Π½Π° Π² ΠΉΠ΅ΠΌΠ΅Π½ΡΠΊΠΎΠΌ ΠΊΡΠΈΠ·ΠΈΡΠ΅, Π² ΠΊΠΎΡΠΎΡΠΎΠΌ Π’Π΅Π³Π΅ΡΠ°Π½Β Ρ ΠΏΠΎΠΌΠΎΡΡΡ Π·Π΅ΠΉΠ΄ΠΈΡΡΠΊΠΎΠΉ Π³ΡΡΠΏΠΏΠΈΡΠΎΠ²ΠΊΠΈ Ρ
ΡΡΠΈΡΠΎΠ² ΠΏΡΡΠ°Π΅ΡΡΡ ΡΠΊΡΠ΅ΠΏΠΈΡΡ ΡΠΎΠ±ΡΡΠ²Π΅Π½Π½ΡΠ΅Β ΠΏΠΎΠ·ΠΈΡΠΈΠΈ, ΠΏΡΠ΅Π΄ΠΎΡΠ²ΡΠ°ΡΠΈΠ² ΡΠ΅ΠΌ ΡΠ°ΠΌΡΠΌ ΡΡΠΈΠ»Π΅Π½ΠΈΠ΅ ΡΠ°ΡΠ΄ΠΎΠ²ΡΠΊΠΈΡ
ΠΏΠΎΠ·ΠΈΡΠΈΠΉ Π² ΡΠ΅Π³ΠΈΠΎΠ½Π΅
ΠΠΠΠ‘Π’ΠΠ’Π£Π¦ΠΠ― ΠΠΠΠΠΠ ΠΠΠ ΠΠΠ ΠΠΠ’ Π₯Π Π£ΠΠΠΠ Π‘Π’ΠΠΠΠΠ¬ΠΠΠ‘Π’Π ΠΠΠΠΠ’ΠΠ§ΠΠ‘ΠΠΠΠ Π ΠΠΠΠΠ
The article analyzes roleΒ of the religion in the constitution ofΒ the Lebanese republic of 1926. It isΒ demonstrated that the principles ofIslam and Christianity occupy a ratherΒ modest place in the Basic Law ofΒ the country. This is largely due to theΒ specifi cs of the political developmentΒ of the Lebanese state, as well as presenceΒ of sectarian cleavages. Also duringΒ the adoption of the constitution,Β the country was under the protectorateΒ of France, which left an imprintΒ on the content of the Basic Law towardsΒ liberalization and democracy.Moreover, increase of the number, asΒ well as infl uence of the Muslim population,Β can lead to an intensifi cationΒ of Islamism, which will undoubtedlyΒ lead to abolition of the old and adoptionΒ of a new constitution.Π‘ΡΠ°ΡΡΡ ΠΏΠΎΡΠ²ΡΡΠ΅Π½Π°Β ΡΠΎΠ»ΠΈ ΡΠ΅Π»ΠΈΠ³ΠΈΠΈ Π² ΠΊΠΎΠ½ΡΡΠΈΡΡΡΠΈΠΈ ΠΠΈΠ²Π°Π½ΡΠΊΠΎΠΉ Π Π΅ΡΠΏΡΠ±Π»ΠΈΠΊΠΈ 1926 Π³ΠΎΠ΄Π°. ΠΡΠΌΠ΅ΡΠ°Π΅ΡΡΡ, ΡΡΠΎ ΠΏΡΠΈΠ½ΡΠΈΠΏΡ ΠΈΡΠ»Π°ΠΌΠ° ΠΈ Ρ
ΡΠΈΡΡΠΈΠ°Π½ΡΡΠ²Π° Π·Π°Π½ΠΈΠΌΠ°ΡΡ Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎΒ ΡΠΊΡΠΎΠΌΠ½ΠΎΠ΅ ΠΌΠ΅ΡΡΠΎ Π² ΠΡΠ½ΠΎΠ²Π½ΠΎΠΌ ΠΠ°ΠΊΠΎΠ½Π΅ ΡΡΡΠ°Π½Ρ. ΠΠΎ ΠΌΠ½ΠΎΠ³ΠΎΠΌ ΡΡΠΎ ΠΎΠ±ΡΡΡΠ½ΡΠ΅ΡΡΡ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΡΠΌΠΈ ΠΏΠΎΠ»ΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎΡΠ°Π·Π²ΠΈΡΠΈΡ ΠΠΈΠ²Π°Π½ΡΠΊΠΎΠ³ΠΎ Π³ΠΎΡΡΠ΄Π°ΡΡΡΠ²Π°,Β Π° ΡΠ°ΠΊΠΆΠ΅ Π΅Π³ΠΎ ΠΏΠΎΠ»ΠΈΠΊΠΎΠ½ΡΠ΅ΡΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΡΡΡΡ. ΠΡΠΎΠΌΠ΅ ΡΠΎΠ³ΠΎ, Π² ΠΏΠ΅ΡΠΈΠΎΠ΄ ΠΏΡΠΈΠ½ΡΡΠΈΡ ΠΊΠΎΠ½ΡΡΠΈΡΡΡΠΈΠΈ ΡΡΡΠ°Π½Π° Π½Π°Ρ
ΠΎΠ΄ΠΈΠ»Π°ΡΡΒ ΠΏΠΎΠ΄ ΠΏΡΠΎΡΠ΅ΠΊΡΠΎΡΠ°ΡΠΎΠΌ Π€ΡΠ°Π½ΡΠΈΠΈ, ΡΡΠΎΒ Π½Π°Π»ΠΎΠΆΠΈΠ»ΠΎ ΠΎΡΠΏΠ΅ΡΠ°ΡΠΎΠΊ Π½Π° ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅Β ΠΡΠ½ΠΎΠ²Π½ΠΎΠ³ΠΎ ΠΠ°ΠΊΠΎΠ½Π°, ΡΠΏΠΎΡΠΎΠ±ΡΡΠ²ΠΎΠ²Π°Π²Β Π΅Π³ΠΎ Π»ΠΈΠ±Π΅ΡΠ°Π»ΠΈΠ·Π°ΡΠΈΠΈ ΠΈ Π΄Π΅ΠΌΠΎΠΊΡΠ°ΡΠΈΠ·Π°ΡΠΈΠΈ. ΠΠ΄Π½Π°ΠΊΠΎ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠ΅ ΡΠΈΡΠ»Π΅Π½Π½ΠΎΡΡΠΈ ΠΌΡΡΡΠ»ΡΠΌΠ°Π½ΡΠΊΠΎΠ³ΠΎ Π½Π°ΡΠ΅Π»Π΅Π½ΠΈΡ,Β Π° ΡΠ°ΠΊΠΆΠ΅ ΡΠΎΡΡ Π΅Π³ΠΎ Π²Π»ΠΈΡΠ½ΠΈΡ ΠΌΠΎΠ³ΡΡ Π²ΡΠ·Π²Π°ΡΡ ΡΡΠΈΠ»Π΅Π½ΠΈΠ΅ ΠΈΡΠ»Π°ΠΌΠΈΠ·ΠΌΠ°, ΡΡΠΎ, Π±Π΅Π·ΡΡΠ»ΠΎΠ²Π½ΠΎ, ΠΏΡΠΈΠ²Π΅Π΄Π΅Ρ ΠΊ ΠΎΡΠΌΠ΅Π½Π΅ ΡΡΠ°ΡΠΎΠΉΒ ΠΈ ΠΏΡΠΈΠ½ΡΡΠΈΡ Π½ΠΎΠ²ΠΎΠΉ ΠΊΠΎΠ½ΡΡΠΈΡΡΡΠΈΠΈ
ΠΠ ΠΠΠ‘ΠΠΠ ΠΠΠ¦ΠΠΠΠΠΠΠΠ: ΠΠΠΠΠΠΠΠΠ― ΠΒ ΠΠΠ’ΠΠΠ ΠΠ¦ΠΠΠΠΠ«Π ΠΠ ΠΠΠΠ’Π«
The article is devoted to the analysis of the ideological features of the movement of Arab nationalism, which took shape and became popular after the Second world war. Particular attention is paid to the ideas that contributed to the uniο¬ cation of the Arab population throughout the Arab region. These ideas led to the formation of nationalist projects that were aimed to some extent at consolidating the Arab population within one or several countries. Among the most successful nationalist projects are the Egyptian, Iraqi, Syrian, and Algerian and Libyan projects.Π‘ΡΠ°ΡΡΡ ΠΏΠΎΡΠ²ΡΡΠ΅Π½Π° ΡΠ°Π·Π±ΠΎΡΡ ΠΈΠ΄Π΅ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠ΅ΠΉ Π΄Π²ΠΈΠΆΠ΅Π½ΠΈΡ Π°ΡΠ°Π±ΡΠΊΠΎΠ³ΠΎ Π½Π°ΡΠΈΠΎΠ½Π°Π»ΠΈΠ·ΠΌΠ°, ΠΊΠΎΡΠΎΡΠΎΠ΅ ΠΎΡΠΎΡΠΌΠΈΠ»ΠΎΡΡ ΠΈ ΡΡΠ°Π»ΠΎ ΠΏΠΎΠΏΡΠ»ΡΡΠ½ΡΠΌ ΠΏΠΎΡΠ»Π΅ ΠΡΠΎΡΠΎΠΉ ΠΌΠΈΡΠΎΠ²ΠΎΠΉ Π²ΠΎΠΉΠ½Ρ. ΠΡΠΎΠ±ΠΎΠ΅ Π²Π½ΠΈΠΌΠ°Π½ΠΈΠ΅ ΡΠ΄Π΅Π»Π΅Π½ΠΎ ΠΈΠ΄Π΅ΡΠΌ, ΡΠΏΠΎΡΠΎΠ±ΡΡΠ²ΠΎΠ²Π°Π²ΡΠΈΠΌ ΠΎΠ±ΡΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ Π°ΡΠ°Π±ΡΠΊΠΎΠ³ΠΎ Π½Π°ΡΠ΅Π»Π΅Π½ΠΈΡ Π²ΠΎ Π²ΡΠ΅ΠΌ ΠΡΠ°Π±ΡΠΊΠΎΠΌ ΡΠ΅Π³ΠΈΠΎΠ½Π΅. ΠΠ°Π½Π½ΡΠ΅ ΠΈΠ΄Π΅ΠΈ ΠΏΡΠΈΠ²Π΅Π»ΠΈ ΠΊ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ Π½Π°ΡΠΈΠΎΠ½Π°Π»ΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠΎΠ΅ΠΊΡΠΎΠ², ΠΊΠΎΡΠΎΡΡΠ΅ Π² ΡΠΎΠΉ ΠΈΠ»ΠΈ ΠΈΠ½ΠΎΠΉ ΡΡΠ΅ΠΏΠ΅Π½ΠΈ Π±ΡΠ»ΠΈ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½Ρ Π½Π° ΠΊΠΎΠ½ΡΠΎΠ»ΠΈΠ΄Π°ΡΠΈΡ Π°ΡΠ°Π±ΡΠΊΠΎΠ³ΠΎ Π½Π°ΡΠ΅Π»Π΅Π½ΠΈΡ Π² ΠΏΡΠ΅Π΄Π΅Π»Π°Ρ
ΠΎΠ΄Π½ΠΎΠΉ Π»ΠΈΠ±ΠΎ Π½Π΅ΡΠΊΠΎΠ»ΡΠΊΠΈΡ
ΡΡΡΠ°Π½. Π‘ΡΠ΅Π΄ΠΈ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΡΡΠΏΠ΅ΡΠ½ΡΡ
Π½Π°ΡΠΈΠΎΠ½Π°Π»ΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠΎΠ΅ΠΊΡΠΎΠ² ΠΌΠΎΠΆΠ½ΠΎ Π½Π°Π·Π²Π°ΡΡ Π΅Π³ΠΈΠΏΠ΅ΡΡΠΊΠΈΠΉ, ΠΈΡΠ°ΠΊΡΠΊΠΈΠΉ, ΡΠΈΡΠΈΠΉΡΠΊΠΈΠΉ, Π° ΡΠ°ΠΊΠΆΠ΅ Π°Π»ΠΆΠΈΡΡΠΊΠΈΠΉ ΠΈ Π»ΠΈΠ²ΠΈΠΉΡΠΊΠΈΠΉ ΠΏΡΠΎΠ΅ΠΊΡΡ
Myogenic Trigger Zone of Trapezius Muscle Increases the Tone of the Middle Cerebral Artery
Β© 2016, Springer Science+Business Media New York.A myogenic trigger zone (MTZ) has been shown to affect the tone of the surface arteries of the head and lower limbs. However, it remains largely unknown whether the tone of the intracranial arteries is regulated by MTZ. The aim of the present study was to investigate the effect of MTZ in trapezius muscle on the tone of the middle cerebral artery. Using ultrasound measurements of the peak velocity of blood flow and the Lindegaard index (LI), we found that the presence of an active MTZ in a trapezius muscle was per se associated with an increased LI values and that pressure stimulation of the MTZ further increases LI. When MTZ was eliminated by means of manual therapy, the indices of blood flow and LI returned to normal values. We conclude that the reflex spasm of the middle cerebral artery can occur in the presence of an active MTZ-TM and that this phenomenon contributes to the pathogenesis and the clinical symptoms associated with the cervicogenic and tension headaches
Influence of polycations on antibacterial activity of lysostaphin
Β© 2015, Pleiades Publishing, Inc. The synergistic antibacterial activity of lysostaphin and polycations of different chemical structures against Staphylococcus aureus has been shown. Polycations improved the lytic activity of lysostaphin against the peptidoglycan of staphylococci. It is proposed that this resulted in decreased binding of positively charged lysostaphin with S. aureus cell-wall teichoic acids. These data provide an opportunity to search for polycations that would amplify the synergistic effect of lysostaphin or other antibacterial proteins against staphylococci
Synthesis of 5-methyl-2-ethyl-4-chloro-2-oxo-1,2-oxa-4-hospholene
1. The counter synthesis of 5-methyl-2-ethyl-4-chloro-2-oxo-l,2-oxa-4-phospholene was accomplished. 2. The 4-methyl-2-ethyl- and 4-methyl-2-phenyl-5-methylene-2-oxo-1,2-oxa-3-phospholenes were obtained by the chlorination and dehydrochlorination of the 4,5-dimethy1-2-ethyl- and 4,5-dimethy1-2-pheny1-2-oxo-1,2-oxa-4-phospholenes. 3. The 4-methyl-2-ethyl (or phenyl)-5-methylene-2-oxo-1,2-oxa-3-phospolenes when treated with water or alcohols are converted to the corresponding phosphorylated Ξ±, Ξ²-unsaturated ketones. Β© 1971 Consultants Bureau
- β¦