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The R\n                    <jats:sub>3<\/jats:sub>\n                    Sn\u2010 moiety is faithfully delivered to the terminal C\u2010atom, unless a propargylic or homo\u2010propargylic \u2500OH or \u2500NH\n                    <jats:sub>2<\/jats:sub>\n                    group is present in the substrate, which (partly or fully) inverts the regiochemical course; this steering effect, however, can be switched off upon protection of the protic site. The\n                    <jats:italic>trans<\/jats:italic>\n                    \u2010addition likely starts by insertion of the [Cp*FeCl] fragment into the R\n                    <jats:sub>3<\/jats:sub>\n                    Sn\u2500H bond, followed by a migratory insertion of the ligated alkyne into the Fe\u2500Sn unit of the Fe(IV) species thus formed. This \u201cmodified Chalk\u2013Harrod\u201d mechanism is manifested in a stannylative cyclization of 1,6\u2010enyne derivatives, which has hardly any precedent either; a pathway via iron vinylidene intermediates can be excluded on the basis of deuterium labeling experiments.\n                  <\/jats:p>","DOI":"10.1002\/anie.202514794","type":"journal-article","created":{"date-parts":[[2025,8,21]],"date-time":"2025-08-21T09:59:38Z","timestamp":1755770378000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Iron\u2010Catalyzed\n                    <i>trans<\/i>\n                    \u2010Hydrostannation of Terminal Alkynes"],"prefix":"10.1002","volume":"64","author":[{"given":"Soumyadeep","family":"Chakrabortty","sequence":"first","affiliation":[{"name":"Max\u2010Planck\u2010Institut f\u00fcr Kohlenforschung  M\u00fclheim\/Ruhr 45470 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These data are provided free of charge by the joint Cambridge Crystallographic Data Centre and Fachinformationszentrum Karlsruhe Access Structure service. Relevant information is also contained in the Supporting Information."},{"key":"e_1_2_5_70_1","doi-asserted-by":"publisher","DOI":"10.1002\/1521-3773(20000901)39:17<3120::AID-ANIE3120>3.0.CO;2-K"},{"key":"e_1_2_5_71_1","unstructured":"The reaction also works in THF but the yield of2was only 70%; in contrast CH2Cl2 MeOH and EtOH were found unsuitable."},{"key":"e_1_2_5_72_1","doi-asserted-by":"publisher","DOI":"10.1039\/C6DT01823H"},{"key":"e_1_2_5_73_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.organomet.6b00179"},{"key":"e_1_2_5_74_1","doi-asserted-by":"publisher","DOI":"10.1039\/C5DT00704F"},{"key":"e_1_2_5_75_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.organomet.0c00271"},{"key":"e_1_2_5_76_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201706333"},{"key":"e_1_2_5_77_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja0002823"},{"key":"e_1_2_5_78_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja307233p"},{"key":"e_1_2_5_79_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja0777180"},{"key":"e_1_2_5_80_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja0532739"},{"key":"e_1_2_5_81_1","doi-asserted-by":"publisher","DOI":"10.1002\/chem.201803360"},{"key":"e_1_2_5_82_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201604531"},{"key":"e_1_2_5_83_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.organomet.7b00571"},{"key":"e_1_2_5_84_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja00242a068"},{"key":"e_1_2_5_85_1","doi-asserted-by":"publisher","DOI":"10.1002\/chem.201303057"},{"key":"e_1_2_5_86_1","doi-asserted-by":"publisher","DOI":"10.1002\/chem.201704401"},{"key":"e_1_2_5_87_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.orglett.4c02088"},{"key":"e_1_2_5_88_1","doi-asserted-by":"publisher","DOI":"10.1021\/ol005508l"},{"key":"e_1_2_5_89_1","volume-title":"Organotransition Metal Chemistry. 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