Synthesis of planar chiral biferrocenes by iridium-catalyzed [2+2+2] cycloadition of a biferrocene-linked diyne with nitriles: asymmetric desymmetrization and kinetic resolution
Sawano, Takahiro; Murata, Kayo; Suzaki, Tomoaki; Urasawa, Kazuki; Kobayashi, Manami; Aso, Ryota; Ozasa, Kazuki; Ishikawa, Eri; Takeuchi, Ryo; Chemical Communications  (2026) –; doi:10.1039/D6CC00435K

data_7135703
_publ_section_title
;
 Synthesis of planar chiral biferrocenes by iridium-catalyzed [2+2+2]
 cycloaddition of biferrocene-linked diynes with nitriles: asymmetric
 desymmetrization and kinetic resolution.
;
_journal_issue                   33
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              8451
_journal_page_last               8455
_journal_paper_doi               10.1039/d6cc00435k
_journal_volume                  62
_journal_year                    2026
_chemical_formula_moiety         'C26 H22 Fe2'
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_space_group_name_Hall           '-R 3'
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_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_update_record
;
2026-01-16 deposited with the CCDC.	2026-04-02 downloaded from the CCDC.
;
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_cell_length_b                   17.997(7)
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_computing_structure_solution    'SHELXT Version 2018/2 (Sheldrick, 2014)'
_diffrn_ambient_temperature      296
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_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID'
_diffrn_measurement_method       \w
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'w = 1/[\s^2^(Fo^2^)+(0.0354P)^2^+2.2377P] where P=(Fo^2^+2Fc^2^)/3'
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_cod_depositor_comments
'Adding full bibliography for 7135696--7135704.cif.'
_cod_original_cell_volume        4543(3)
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