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A remarkable switch from a diamination to a hydrohydrazination catalyst and observation of an unprecedented catalyst resting state.

Abstract:
A small change with a big effect: Reaction of the titanium complex 1 with terminal alkynes gave the unusual acetylide-vinylhydrazide(1-) compounds 2 (R=4-C6H4X (X=Me, CF3, OMe), C 6F5, SiMe3) as hydrohydrazination intermediates. In contrast, a complex similar to 1 with bulkier trimethylsilyl substituents in place of the isopropyl groups is known to catalyze the 1,2-diamination of alkynes with hydrazines. Copyright © 2012 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim.
Publication status:
Published

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Publisher copy:
10.1002/anie.201206249

Authors


Schwarz, AD More by this author
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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Inorganic Chemistry
Journal:
Angewandte Chemie (International ed. in English)
Volume:
51
Issue:
49
Pages:
12298-12302
Publication date:
2012-12-05
DOI:
EISSN:
1521-3773
ISSN:
1433-7851
URN:
uuid:35bf94ba-838b-42b8-bc10-4fa28314a844
Source identifiers:
358298
Local pid:
pubs:358298

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