Ruthenium(II)-catalyzed synthesis of poly-substituted furans <i>via</i> intermolecular oxidative annulation of 3-(phenylethynyl) oxazolidin-2-ones.
Vikram, Vikrant Nawal; Chourasiya, Mohit; Kant, Ruchir; Tadigoppula, Narender; Organic & biomolecular chemistry 23 (2025) 3567–3571; doi:10.1039/d4ob02098g

data_7160425
_publ_section_title
;
 Ruthenium(II)-catalyzed synthesis of poly-substituted furans <i>via</i>
 intermolecular oxidative annulation of 3-(phenylethynyl)
 oxazolidin-2-ones.
;
_journal_issue                   15
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              3567
_journal_page_last               3571
_journal_paper_doi               10.1039/d4ob02098g
_journal_volume                  23
_journal_year                    2025
_chemical_formula_sum            'C26 H26 N2 O5'
_chemical_formula_weight         446.49
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_cell_setting           monoclinic
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_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2024-12-10 deposited with the CCDC.	2025-03-14 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 91.395(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.5806(2)
_cell_length_b                   9.2512(2)
_cell_length_c                   25.9330(5)
_cell_measurement_reflns_used    8055
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      76.6600
_cell_measurement_theta_min      3.4040
_cell_volume                     2297.81(8)
_computing_cell_refinement       'CrysAlisPro 1.171.42.67a (Rigaku OD, 2022)'
_computing_data_collection       'CrysAlisPro 1.171.42.67a (Rigaku OD, 2022)'
_computing_data_reduction        'CrysAlisPro 1.171.42.67a (Rigaku OD, 2022)'
_computing_molecular_graphics    'SHELXTL (Bruker, 1997)'
_computing_publication_material  'PLATON (Spek, 2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'Hybrid Pixel Array Detector'
_diffrn_detector_area_resol_mean 10.0000
_diffrn_detector_type            HyPix
_diffrn_measured_fraction_theta_full 0.933
_diffrn_measured_fraction_theta_max 0.933
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB Synergy, Dualflex, HyPix'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0308
_diffrn_reflns_av_sigmaI/netI    0.0329
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -4
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            14941
_diffrn_reflns_theta_full        77.94
_diffrn_reflns_theta_max         77.94
_diffrn_reflns_theta_min         3.41
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'PhotonJet (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    0.735
_exptl_absorpt_correction_T_max  0.9712
_exptl_absorpt_correction_T_min  0.9302
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.291
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             944
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.588
_refine_diff_density_min         -0.370
_refine_diff_density_rms         0.043
_refine_ls_extinction_coef       0.0041(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.090
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     301
_refine_ls_number_reflns         4575
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.090
_refine_ls_R_factor_all          0.0766
_refine_ls_R_factor_gt           0.0641
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0965P)^2^+0.7786P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1855
_refine_ls_wR_factor_ref         0.1989
_reflns_number_gt                3596
_reflns_number_total             4575
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            d4ob02098g2.cif
_cod_data_source_block           xxx
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Multi-scan' was
changed to 'multi-scan' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 8170 2020-07-09 18:12:32Z antanas 

 Adding full bibliography for 7160425.cif.
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7160425