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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...

Laut SaltonLaut SaltonTampilkan peta CaliforniaLaut SaltonTampilkan peta Amerika SerikatLetakCounty Imperial dan Riverside, California, Amerika SerikatKoordinat33°18′47″N 115°50′04″W / 33.31306°N 115.83444°W / 33.31306; -115.83444Koordinat: 33°18′47″N 115°50′04″W / 33.31306°N 115.83444°W / 33.31306; -115.83444Jenis perairanEndorheic rift lakeAliran masuk utamaSungai AlamoSungai NewSungai WhitewaterAliran keluar utamaTidak...

Bagian wortel oranye yang dapat dimakan adalah akar tunggangnya Akar tunggang adalah akar yang besar, sentral, dan dominan dari mana akar lain bertunas secara lateral. Biasanya akar tunggang agak lurus dan sangat tebal, bentuknya meruncing, dan tumbuh langsung ke bawah.[1] Pada beberapa tanaman, seperti wortel, akar tunggang adalah organ penyimpanan yang berkembang sangat baik sehingga telah dibudidayakan sebagai sayuran. Sistem akar tunggang kontras dengan sistem akar adventif atau b...

Ellen Gould WhiteEllen White pada tahun 1880Lahir(1827-11-26)26 November 1827Gorham, MaineMeninggal16 Juli 1915(1915-07-16) (umur 87)Elmshaven (Saint Helena), CaliforniaPekerjaanPenulis dan Pelopor Gereja Masehi Advent Hari KetujuhSuami/istriJames WhiteTanda tangan Ellen Gould White (nama lahir: Ellen Gould Harmon) (lahir tanggal November 26, 1827 - meninggal tanggal 16 Juli 1915) adalah seorang penulis dan seorang tokoh kristen di Amerika. Dia, bersama dengan Joseph Bates dan James S. ...

1969 single by Frida Boccara This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help to improve this article by introducing more precise citations. (June 2014) (Learn how and when to remove this template message) Un jour, un enfantEurovision Song Contest 1969 entryCountryFranceArtist(s)Frida BoccaraLanguageFrenchComposer(s)Emil SternLyricist(s)Eddy MarnayConductorFranck PourcelFinals performa...

American politician Almon W. Babbitt Almon Whiting Babbitt[1] (9 October 1812[2] – c. 7 September 1856) was an early leader in the Latter Day Saint movement, a Mormon pioneer, and the first secretary and treasurer of the Territory of Utah. He was killed in a raid by Cheyenne Native Americans in Nebraska Territory while travelling on government business between Utah and Washington, D.C. Early life and church service Babbitt was born in Cheshire, Massachusetts[3] to Ir...

Naissance de Paul de Grèce. Chronologie de la Grèce ◄◄ 1963 1964 1965 1966 1967 1968 1969 1970 1971 ►► Chronologies Données clés 1964 1965 1966  1967  1968 1969 1970Décennies :1930 1940 1950  1960  1970 1980 1990Siècles :XVIIIe XIXe  XXe  XXIe XXIIeMillénaires :-Ier Ier  IIe  IIIe Chronologies géographiques Afrique Afrique du Sud, Algérie, Angola, Bénin, Botswana, Burkina Faso, Burundi, Cameroun, Cap-Vert, République ce...

Pour les articles homonymes, voir Cain (homonymie). Herman Cain Herman Cain en 2011. Fonctions Président de l'Association nationale de la restauration 1996 – 1999(3 ans) Prédécesseur William Fisher Successeur Steven C. Anderson Président de la Banque fédérale de réserve de Kansas City 1er janvier 1995 – 19 août 1996(1 an, 7 mois et 18 jours) Prédécesseur Burton A. Dole, Jr. Successeur A. Drue Jennings Biographie Date de naissance 13 décembre 1945 Lieu de na...

Overview of the aging of wine Bottles of wine aging in an underground cellar The aging of wine is potentially able to improve the quality of wine. This distinguishes wine from most other consumable goods. While wine is perishable and capable of deteriorating, complex chemical reactions involving a wine's sugars, acids and phenolic compounds (such as tannins) can alter the aroma, color, mouthfeel and taste of the wine in a way that may be more pleasing to the taster. The ability of a wine to a...

У этого термина существуют и другие значения, см. Чайки (значения). Чайки Доминиканская чайкаЗападная чайкаКалифорнийская чайкаМорская чайка Научная классификация Домен:ЭукариотыЦарство:ЖивотныеПодцарство:ЭуметазоиБез ранга:Двусторонне-симметричныеБез ранга:Вторич...

Dixie DregsAndy West and Allen Sloan of Dixie Dregs tahun 1999Informasi latar belakangNama lain Dixie Grit (1970-1971) Rock Ensemble II (1973) The Dregs (1981-1983) AsalAugusta, GeorgiaGenre progressive rock jazz rock Tahun aktif 1970–1983 1988–sekarang Label Arista Capricorn Artis terkaitRudess/Morgenstein ProjectSitus webSitus web resmi Anggota Steve Davidowski Rod Morgenstein Steve Morse Allen Sloan Andy West Mantan anggota Frank Brittingham Johnny Carr Gilbert Frayer Jerry Goodman Fra...

Questa voce sull'argomento centri abitati della Nuova Aquitania è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. LusignanocomuneLusignan Lusignano – Veduta LocalizzazioneStato Francia Regione Nuova Aquitania Dipartimento Vienne ArrondissementPoitiers CantoneLusignan TerritorioCoordinate46°26′N 0°07′E / 46.433333°N 0.116667°E46.433333; 0.116667 (Lusignano)Coordinate: 46°26′N 0°07′E / 46.433...

KPIX-TVSan Francisco-Oakland-San Jose, CaliforniaKotaSan FranciscoSaluranDigital: 29 (UHF)Maya: 5 (PSIP)BrandingKPIX (umum)CBS News Bay Area (berita)SloganExpect MorePemrogramanSubkanal5.1 HDAfiliasiCBSKepemilikanPemilikViacomCBS (CBS Broadcasting, Inc.)Stasiun seindukKBCW, KCBS, KFRC-FM, KITS, KLLC, KMVQ-FM, KZDGRiwayatSiaran perdana22 Desember 1948Bekas nomor kanalAnalog:5 (VHF, 1948-2009)Bekas afiliasiSemua sekunder:NBC (1948-1949)DuMont (1949-1953)Paramount (1953)Makna tanda panggilPIX ad...

Joseph M. Acaba This is a list of notable Puerto Rican scientists involved in the United States Space Program, also known as the National Aeronautics and Space Administration (NASA) and their contributions to said program. This list is not limited to Puerto Ricans born in Puerto Rico, it also includes people of Puerto Rican descent born elsewhere. According to an article written by Margarita Santori Lopez for the official newspaper of the University of Puerto Rico's Mayagüez Campus, Prensa ...

Questa voce sull'argomento calciatori è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di riferimento. Omar Da FonsecaNazionalità Argentina Francia[1] Altezza179 cm Peso72 kg Calcio RuoloAttaccante Termine carriera1993 CarrieraSquadre di club1 1978-1981 Vélez Sarsfield45 (2)1982 Renato Cesarini13 (9)1982-1985 Tours97 (42)1985-1986 Paris Saint-Germain17 (2)1986-1988 Monaco52 ...

匈牙利语人名顺序为先姓后名。本条目中的译名遵从此顺序。 利盖蒂·捷尔吉Ligeti György Sándor出生(1923-05-28)1923年5月28日 罗马尼亚王国特爾訥韋尼逝世2006年6月12日(2006歲—06—12)（83歲） 奥地利维也纳国籍奥地利知名作品管弦乐《气氛》，歌剧《伟大的死亡》，两首弦乐四重奏所属时期/乐派20世纪擅长类型管弦乐，室内乐 师从 柯达伊 学生/受影响人物 陈银淑，陈晓�...

Extremely heavy-duty plain-woven fabricNot to be confused with Canvassing.This article is about the fabric. For other uses, see Canvas (disambiguation). Sailor bag made of canvas Canvas roof at the Erasmus station of the Brussels Metro One of Poland's biggest canvas paintings, the Battle of Grunwald, 1878, by Jan Matejko (426 cm × 987 cm (168 in × 389 in)), displayed in the National Museum in Warsaw[1] Canvas is an extremely durable plain-woven fabric used for making sails, tents, m...

Range of reddish pinks For other uses, see Cerise (disambiguation). Cerise      Color coordinatesHex triplet#DE3163sRGBB (r, g, b)(222, 49, 99)HSV (h, s, v)(343°, 78%, 87%)CIELChuv (L, C, h)(50, 118, 2°)SourceMaerz and Paul[1]ISCC–NBS descriptorVivid redB: Normalized to [0–255] (byte) Bandy balls are cerise colored. Cerise (/səˈriːs/ or /səˈriːz/; French: [sə.ʁiz]) is a deep to vivid reddish pink. Etymology The color or name comes from the Fren...

كأس الاتحاد الإنجليزي كأس الاتحاد الإنجليزي سنة التأسيس 1871 (منذ 153 سنة) المنطقة  إنجلترا عدد الفرق 731 (منذ 2013–14) البطل الحالي مانشستر يونايتد (اللقب الثالث عشر) (2023–24) النادي الأكثر نجاحاً أرسنال (14 لقبًا) الموقع الرسمي www.thefa.com/thefacup كأس الاتحاد الإنجليزي 2023–24 تعديل مصدري -...

Andringitra National ParkIUCN category II (national park)LocationHaute Matsiatra, MadagascarNearest cityAmbalavaoCoordinates22°6′46″S 46°55′23″E / 22.11278°S 46.92306°E / -22.11278; 46.92306Area311.60 km2 (120.31 sq mi)Established31 December 1927 (as nature reserve)8 October 1999 (as national park)Visitors3,436 (in 2011)[1]Governing bodyMadagascar National Parks Association (PNM-ANGAP)Websitewww.parcs-madagascar.com...