Asymmetric Transfer Hydrogenation of γ-aryl α, γ-dioxo-butyric acid esters
Mo, Yuanzhao; Nie, HuiFang; Lei, Yang; Zhang, Dongxu; Li, XiaoYe; Wang, QiaoFeng; zhang, shengyong; RSC Adv.  (2016) –; doi:10.1039/C6RA02500E

data_7224722
_publ_section_title
;
 Asymmetric Transfer Hydrogenation of \g-aryl \a, \g-dioxo-butyric acid
 esters
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C6RA02500E
_journal_year                    2016
_chemical_formula_sum            'C12 H13 F O4'
_chemical_formula_weight         240.22
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2016-01-14 deposited with the CCDC.
2016-03-23 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 101.62(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   5.059(5)
_cell_length_b                   10.704(12)
_cell_length_c                   11.363(12)
_cell_measurement_reflns_used    384
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      17.84
_cell_measurement_theta_min      2.64
_cell_volume                     602.7(11)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0512
_diffrn_reflns_av_sigmaI/netI    0.1218
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            2945
_diffrn_reflns_theta_full        25.08
_diffrn_reflns_theta_max         25.08
_diffrn_reflns_theta_min         1.83
_exptl_absorpt_coefficient_mu    0.109
_exptl_absorpt_correction_T_max  0.9865
_exptl_absorpt_correction_T_min  0.9674
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.324
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             252
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.205
_refine_diff_density_min         -0.224
_refine_diff_density_rms         0.061
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0(3)
_refine_ls_extinction_coef       0.036(9)
_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   1.064
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     157
_refine_ls_number_reflns         2093
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.064
_refine_ls_R_factor_all          0.1518
_refine_ls_R_factor_gt           0.0777
_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^)+(0.0700P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1627
_refine_ls_wR_factor_ref         0.1941
_reflns_number_gt                1057
_reflns_number_total             2093
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6ra02500e2.cif
_cod_data_source_block           xb8331_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 
;
_cod_original_cell_volume        602.6(11)
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               7224722