Discovery of temperature-dependent, autoinductive reversal of enantioselectivity: palladium-mediated [3+3]-annulation of 4-hydroxycoumarins.
Wang, Shasha; Xiao, Junan; Li, Jun; Xiang, Haoyue; Wang, Chaoming; Chen, Xiaoqing; Carter, Rich G.; Yang, Hua; Chemical communications (Cambridge, England) 53 (2017) 4441–4444; doi:10.1039/c7cc01610g

data_7119865
_publ_section_title
;
 Discovery of temperature-dependent, autoinductive reversal of
 enantioselectivity: palladium-mediated [3+3]-annulation of
 4-hydroxycoumarins.
;
_journal_issue                   32
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              4441
_journal_page_last               4444
_journal_paper_doi               10.1039/c7cc01610g
_journal_volume                  53
_journal_year                    2017
_chemical_absolute_configuration ad
_chemical_formula_sum            'C22 H17 Cl O4'
_chemical_formula_weight         380.81
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2016-10-04 deposited with the CCDC.
2017-03-21 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.3404(10)
_cell_length_b                   11.2518(11)
_cell_length_c                   16.982(2)
_cell_measurement_reflns_used    3132
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.01
_cell_measurement_theta_min      2.17
_cell_volume                     1784.7(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0196
_diffrn_reflns_av_sigmaI/netI    0.0256
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            8539
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         2.17
_exptl_absorpt_coefficient_mu    0.240
_exptl_crystal_colour            COLORLESS
_exptl_crystal_density_diffrn    1.417
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BAR
_exptl_crystal_F_000             792
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.113
_refine_diff_density_min         -0.153
_refine_diff_density_rms         0.027
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.08(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.022
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     244
_refine_ls_number_reflns         3132
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0385
_refine_ls_R_factor_gt           0.0305
_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^)+(0.0359P)^2^+0.1983P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0686
_refine_ls_wR_factor_ref         0.0723
_reflns_number_gt                2753
_reflns_number_total             3132
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c7cc01610g2.cif
_cod_data_source_block           ja
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/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 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 7119865--7119866.cif.
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7119865