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The Barton–Zard reaction is a route to pyrrole derivatives via the reaction of a nitroalkene with an α-isocyanide under basic conditions.[1] It is named after Derek Barton and Samir Zard who first reported it in 1985.[2] Mechanism The mechanism consists of five steps: Base catalyzed carbonyl enolization of the α-isocyanide. Michael-type addition between the α-isocyanide carbonyl enolate and the nitroalkene. 5-endo-dig cyclization (see: Baldwin's rules). Base catalyzed eli...

يفتقر محتوى هذه المقالة إلى الاستشهاد بمصادر. فضلاً، ساهم في تطوير هذه المقالة من خلال إضافة مصادر موثوق بها. أي معلومات غير موثقة يمكن التشكيك بها وإزالتها. (يوليو 2019) الحدثكأس إيطاليا 1989–90 يوفنتوس إيه سي ميلان 1 0 التاريخ1990  →نهائي كأس إيطاليا 1989  نهائي كأس إيطاليا 1991...

Untuk kegunaan lain, lihat Zoom. Zoom Video Communications, Inc.URLhttps://zoom.us TipePublicPembuatEric Yuan Service entry (en)21 April 2011 Tempat pembentukanSan Jose, California Lokasi kantor pusatSan Jose, California NegaraAmerika Serikat Penghargaan(2023)  Big Brother (en)(2020)  iPad App of the Year (en) Total omset $622 juta (2019)Peringkat Alexa▼ 42 (Hingga 16 April 2020[update])[1]Blog resmihttps://blog.zoom.us/ [2] Zoom Video Communicati...

Russian politician (born 1980) In this name that follows Eastern Slavic naming customs, the patronymic is Mikhailovich and the family name is Volkov. You can help expand this article with text translated from the corresponding article in Russian. (August 2018) Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the transla...

City in Tehran province, Iran For other places with a similar name, see Ab-e Sard. City in Tehran, IranAbsard Persian: آبسردCityAbsardCoordinates: 35°37′10″N 52°09′07″E / 35.61944°N 52.15194°E / 35.61944; 52.15194[1]CountryIranProvinceTehranCountyDamavandDistrictCentralElevation1,700−2,000 m (−4,900 ft)Population (2016)[2] • Total10,648Time zoneUTC+3:30 (IRST) Absard (Persian: آبسرد), also Romanized a...

هذه المقالة بحاجة لصندوق معلومات. فضلًا ساعد في تحسين هذه المقالة بإضافة صندوق معلومات مخصص إليها. يفتقر محتوى هذه المقالة إلى الاستشهاد بمصادر. فضلاً، ساهم في تطوير هذه المقالة من خلال إضافة مصادر موثوق بها. أي معلومات غير موثقة يمكن التشكيك بها وإزالتها. (ديسمبر 2018) مسجد ا...

Kekaisaran Khwarezmiaخوارزمشاهیان1077–1231Khwarezmid Empire sekitar tahun 1200Ibu kotaUrgenchAgama Islam SunniPemerintahanMonarkiShah • 1077-1096/7 Anushtigin Gharchai• 1220-1231 Jalal ad-Din Mingburnu (Sultan) Era SejarahAbad Pertengahan• Didirikan 1077• Dibubarkan 1231 Didahului oleh Digantikan oleh kslKesultanan Seljuk Raya ksrKekaisaran Mongolia Sunting kotak info • Lihat • BicaraBantuan penggunaan templat ini Sejarah bangsa Tur...

2020 United States House of Representatives elections in Utah ← 2018 November 3, 2020 2022 → All 4 Utah seats to the United States House of Representatives   Majority party Minority party   Party Republican Democratic Last election 3 1 Seats won 4 0 Seat change 1 1 Popular vote 873,347 505,946 Percentage 60.98% 35.33% Swing 2.33% 0.21% Republican   40–50%   50–60%   60–70% Elections in Utah Federal ...

Statue of Christ in Rio de Janeiro, Brazil For other statues, see Christ the Redeemer (disambiguation) § Sculpture. Christ the RedeemerCristo RedentorThe statue in 202222°57′7″S 43°12′38″W / 22.95194°S 43.21056°W / -22.95194; -43.21056LocationCorcovado mountain,Rio de Janeiro, BrazilDesignerDesigned by sculptors Paul Landowski and Heitor da Silva Costa and built by engineer Heitor da Silva Costa in collaboration with Albert Caquot. Sculptor Gheorghe L...

Greek Goddess of Fortune For other uses, see Tyche (disambiguation). TycheGoddess of FortuneMember of the OceanidsPolychrome marble statue depicting Tyche holding the infant Plutus in her arms, 2nd century AD, Istanbul Archaeological MuseumPersonal informationParentsOceanus and Tethys orZeus orPrometheusSiblingsOceanids, PotamoiChildrenPlutusEquivalentsRoman equivalentFortuna Greek deitiesseries Primordial deities Titans and Olympians Water deities Chthonic deities Personifications List Achly...

Ця стаття потребує додаткових посилань на джерела для поліпшення її перевірності. Будь ласка, допоможіть удосконалити цю статтю, додавши посилання на надійні (авторитетні) джерела. Зверніться на сторінку обговорення за поясненнями та допоможіть виправити недоліки. Мат...

منتخب الصين الوطني لهوكي الجليد اللقب 龙 (Dragons) الإتحاد إتحاد الصين لهوكي الجليد البلد الصين  المدرب جيركي أهو مساعد المدرب ألكسندر باركوفأرتور أوكتاباريفوانغ غوانهوا الأكثر لعباً وانغ داهاي (83) الأكثر نقاط وانغ داهاي (50) ألوان الفريق       رمز IIHF CHN التصنيف العالمي...

بورسيبا بورسيبابورسيبا الموقع بابل،  العراق المنطقة بلاد الرافدين إحداثيات 32°23′31″N 44°20′30″E / 32.391997222222°N 44.341688888889°E / 32.391997222222; 44.341688888889   تعديل مصدري - تعديل   32°23′31.19″N 44°20′30.08″E / 32.3919972°N 44.3416889°E / 32.3919972; 44.3416889 بقايا برج النمرود في بورسيبا �...

Watercourse in Cambridgeshire, England New Bedford RiverNew Bedford River at OxlodeSpecificationsStatusOpenNavigation authorityEnvironment AgencyHistoryPrincipal engineerCornelius VermuydenDate of act1649Date of first use1652GeographyStart pointEarithEnd pointDenver SluiceConnects toRiver Great Ouse vteOld and New Bedford Rivers Legend to King's Lynn River Great Ouse and Relief Channel Salter's Lode Lock A G Wright sluice Denver Sluice Old Bedford Sluice Old Bedford River New Bedford River La...

Ministerial department of the UK Government Department of Health and Social CareLogo39 Victoria Street, WestminsterDepartment overviewFormed1988Preceding DepartmentDepartment of Health and Social SecurityJurisdictionGovernment of the United KingdomHeadquarters39 Victoria Street London SW1H 0EU[1]Employees1,588 (2019/20)[2]Annual budget£138.9 billion; 2020–21 ($185 billion)[3]Secretary of State responsibleVictoria Atkins MP, Secretary of State for Health and Social C...

US federal government job-creation program (1933–34) Civil Works Administration workers cleaning and painting the gold dome of the Colorado State Capitol (1934). The Civil Works Administration (CWA) was a short-lived job creation program established by the New Deal during the Great Depression in the United States in order to rapidly create mostly manual-labor jobs for millions of unemployed workers. The jobs were merely temporary, for the duration of the hard winter of 1933–34. President ...

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Political party in Israel Movement for Civil Rights and Peace התנועה לזכויות האזרח ולשלום‎LeaderShulamit AloniYossi SaridGabi Deus (de jure)Founded1973Dissolved1997 (de facto)Split fromAlignmentMerged intoMeretzIdeologyLiberal socialism[1][2]Civil libertarianism[3]SecularismAnti-clericalism[4]Green politics[5]Socialist feminismTwo-state solutionLabor ZionismPolitical positionLeft-wing[6]Most MKs6...

TV5JenisBroadcast commercial television networkMerekThe Kapatid Network (Kapatid is a Tagalog term for sibling)NegaraPhilippinesJangkauanNationalDidirikan19 Juni 1960 oleh Chino RocesSloganIba ang Saya pag Sama-Sama!PemilikMediaQuest Holdings, Inc. (Subsidiary of the PLDT Beneficial Trust Fund)IndukTV5 NetworkTokoh pentingManny V. Pangilinan, Chairman Chot Reyes, President and CEOTanggal luncur19 Juni 1960Nama sebelumnyaAssociated Broadcasting Corporation (1960–1972)Associated Broadcasting ...

ThistedThistedNomination district constituencyfor the FolketingLocation of Thisted within North JutlandLocation of North Jutland within DenmarkMunicipalitiesMorsø ThistedConstituencyNorth JutlandElectorate47,441 (2022)[1]Current constituencyCreated1849 (as constituency)[2]1920 (as nomination district) Thisted nominating district is one of the 92 nominating districts that exists for Danish elections following the 2007 municipal reform.[3][4][5] It consi...