Enantioselective deprotometalation of alkyl ferrocenecarboxylates using bimetallic bases
Dayaker, Gandrath; Erb, William; Hedidi, Madani; Chevallier, Floris; Blot, Marielle; Gros, Philippe C.; Hilmersson, Göran; Roisnel, Thierry; Dorcet, Vincent; Bentabed-Ababsa, Ghenia; Mongin, Florence; New Journal of Chemistry 45 (2021) 22579–22590; doi:10.1039/D1NJ04526A

data_7061072
_publ_section_title
;
 Enantioselective deprotometalation of alkyl ferrocenecarboxylates using
 bimetallic bases
;
_journal_issue                   48
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              22579
_journal_page_last               22590
_journal_paper_doi               10.1039/D1NJ04526A
_journal_volume                  45
_journal_year                    2021
_chemical_absolute_configuration rm/ad/rmad/syn/unk/.
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C18 H28 N, Cl'
_chemical_formula_sum            'C18 H28 Cl N'
_chemical_formula_weight         293.86
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_update_record
;
2021-09-16 deposited with the CCDC.	2021-11-18 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 118.3930(10)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   11.2823(3)
_cell_length_b                   7.3708(2)
_cell_length_c                   11.7289(3)
_cell_measurement_reflns_used    9515
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.49
_cell_measurement_theta_min      3.40
_cell_measurement_wavelength     0.71073
_cell_volume                     858.04(4)
_computing_cell_refinement       'Bruker APEX2 (Bruker, 2014)'
_computing_data_collection       'Bruker APEX2 (Bruker, 2014)'
_computing_data_reduction        'Bruker APEX2 (Bruker, 2014)'
_computing_molecular_graphics
;
   'SXGRAPH (L. Farrugia, 1999), Mercury (CSD, 2020)'
;
_computing_publication_material  'CRYSCALC (T. Roisnel, local program, 2020)'
_computing_structure_refinement  'SHELXL-2018_3 (Sheldrick, 2018)'
_computing_structure_solution    'SIR97 (A. Altomare et al., 1999)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.33
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'APEXII, Bruker-AXS'
_diffrn_measurement_method       'CCD rotation images, thin slices'
_diffrn_orient_matrix_UB_11      -0.0508560
_diffrn_orient_matrix_UB_12      0.0979761
_diffrn_orient_matrix_UB_13      0.0170636
_diffrn_orient_matrix_UB_21      0.0381006
_diffrn_orient_matrix_UB_22      -0.0417264
_diffrn_orient_matrix_UB_23      0.0918727
_diffrn_orient_matrix_UB_31      0.0781890
_diffrn_orient_matrix_UB_32      0.0840588
_diffrn_orient_matrix_UB_33      0.0257165
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0317
_diffrn_reflns_av_unetI/netI     0.0261
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            13935
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.484
_diffrn_reflns_theta_min         3.397
_exptl_absorpt_coefficient_mu    0.215
_exptl_absorpt_correction_T_max  0.983
_exptl_absorpt_correction_T_min  0.791
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
  [Sheldrick, G.M. (2014). SADABS Bruker AXS Inc., Madison, Wisconsin, USA]
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.137
_exptl_crystal_description       prism
_exptl_crystal_F_000             320
_exptl_crystal_size_max          0.480
_exptl_crystal_size_mid          0.130
_exptl_crystal_size_min          0.080
_refine_diff_density_max         0.265
_refine_diff_density_min         -0.142
_refine_diff_density_rms         0.032
_refine_ls_abs_structure_details
;
Flack x determined using 1613 quotients [(I+)-(I-)]/[(I+)+(I-)]
(Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.033(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     185
_refine_ls_number_reflns         3854
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0280
_refine_ls_R_factor_gt           0.0266
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0413P)^2^+0.0918P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0705
_refine_ls_wR_factor_ref         0.0717
_reflns_Friedel_coverage         0.824
_reflns_Friedel_fraction_full    0.992
_reflns_Friedel_fraction_max     0.963
_reflns_number_gt                3724
_reflns_number_total             3854
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            d1nj04526a2.cif
_cod_data_source_block           D9_179F2_HpinoSR
_cod_depositor_comments
'Adding full bibliography for 7061069--7061073.cif.'
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               7061072
_shelx_res_checksum              18237