antarafacial

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antarafacial [‚an·tə·rə′fā·shəl]

(organic chemistry)

The stereochemistry when, simultaneously, two sigma bonds are formed or broken on the opposite faces of the component pi systems, such as in a cycloaddition reaction.

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No references found			While the photochemical conversion formally presents an intramolecular ene process, the prospects of a concerted reaction would anticipate an antarafacial homo[1,5]-hydrogen shift, yielding the C-6 diastereomer. Studies for the synthesis of marine natural products by Williams, David R.; Walsh, Martin J.; Claeboe, Christopher D.; Zorn, Nicolas / Pure and Applied Chemistry As a result, the valence isomerization changes from being a thermally disfavored antarafacial [4n+2] electrocyclic ring closure (16 to 17) to a thermally favored suprafacial [4n+2] electrocyclic ring closure (19 to 20) [23]. Nonplanar aromatic compounds. Part 10: a strategy for the synthesis ... by Yao, Tieguang; Yu, Hao; Vermeij, Rudolf J.; Bodwell, Graham J. / Pure and Applied Chemistry			Antal Babics Antal Hidas Antal Pager Antal Páger Antalcidas, Peace of Antaliepte antalkali Antalya Antananarivo Antanas Apolinaro Kuchas Antanas Baranauskas Antanas Barkauskas Antanas Iuozovich Snechkus Antanas Jono Žmuidzinavicius Antanas Jono Raciunas Antanas Jono Zmuidzinavicius Antanas Mackevicius Antanas Martyno Gudaitis Antanas Smetona Antanas Snechkus Antanas Stasevich Barkauskas Antanas Strazdas Antanas Venclova Antanas Vienuolis Antara antarafacial Antarah ibn Shaddat Antarctic antarctic air Antarctic Anticyclone Antarctic Circle Antarctic Circumpolar Current Antarctic Convergence antarctic faunal region antarctic front Antarctic Intermediate Water Antarctic Oases Antarctic Ocean Antarctic ozone hole Antarctic Peninsula Antarctic Region Antarctic regions Antarctic Sidestripe Antarctic vortex Antarctic Zone Antarctica Antares Antasthman antazoline ante Ante Kovacic			Antanas Martyno Gudaitis Antanas Smetona Antanas Snechkus Antanas Stasevich Barkauskas Antanas Strazdas Antanas Venclova Antanas Vienuolis Antano Gustaicio Aviacijos Institutas Antanta Antanta antapex Antaphrodisiac Antaphrodisiac Antaphroditic antapology Antapoplectic Antar Antar Kerja Antar Daerah Antar Kota Antar Propinsi Antar Kota Dalam Propinsi Antar Lintas Sumatera Antar-Rashtriya Sahayog Parishad Antara Antara Antara (drug) ANTARA News ANTARAC antarafacial Antarafacial - suprafacial Antarah ibn Shaddat Antarchism Antarchist Antarchistic Antarctic Antarctic antarctic air Antarctic and Southern Ocean Coalition antarctic anticyclone Antarctic Archipelago Antarctic Astronomy and Astrophysics Research Institute Antarctic Beech Antarctic Biodiversity-Past, Present and Future Antarctic Bottom Water Antarctic Bottom Water Antarctic Circle Antarctic Circle Antarctic Circumpolar Coastal Wave Antarctic Circumpolar Current Antarctic Circumpolar Current Antarctic Circumpolar Wave Antarctic Climate and Ecosystems Cooperative Research Centre Antarctic Climate Evolution Antarctic Cold Reversal Antarctic Confederation of City Republics Antarctic Confederation of Federal Territories Antarctic Conservation Act

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