Palladium-catalyzed Highly Diastereoslective Cascade Dihalogenation of Alkyne-tethered Cylcohexadienones via Umpolung of Palladium Enolate
Volla, Chandra MR; Singh, Anurag; Shukla, Rahul Kumar; Chemical Communications  (2019) –; doi:10.1039/C9CC07164D

data_7124329
_publ_section_title
;
 Palladium-catalyzed Highly Diastereoslective Cascade Dihalogenation of
 Alkyne-tethered Cylcohexadienones via Umpolung of Palladium Enolate
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C9CC07164D
_journal_year                    2019
_chemical_formula_moiety         'Br2 C17 O3'
_chemical_formula_sum            'C17 Br2 O3'
_chemical_formula_weight         411.99
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_primary     dual
_audit_creation_date             2019-05-23
_audit_creation_method
;
Olex2 1.2-ac3
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5381)
;
_audit_update_record
;
2019-06-11 deposited with the CCDC.    2019-10-14 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 106.686(5)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   18.4503(8)
_cell_length_b                   7.2258(3)
_cell_length_c                   12.3600(6)
_cell_measurement_reflns_used    12550
_cell_measurement_temperature    150
_cell_measurement_theta_max      31.2680
_cell_measurement_theta_min      2.2870
_cell_volume                     1578.43(13)
_computing_cell_refinement       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      150
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w    -59.00  39.50   0.50    8.00    --  -20.00  72.00 -36.00  197
  2  \w    -65.50  11.00   0.50    8.00    --  -20.00 -72.00 108.00  153
  3  \w      1.00  70.00   0.50    8.00    --  -20.00  72.00  36.00  138
  4  \w    -53.00 -23.00   0.50    8.00    --  -20.00 -72.00-108.00   60
  5  \w   -110.00  70.00   0.50    8.00    --  -20.00   0.00-108.00  360
  6  \w    -59.00 -23.00   0.50    8.00    --  -20.00  72.00-180.00   72
;
_diffrn_measurement_device       'abstract diffractometer'
_diffrn_measurement_device_type
'dtrek-CrysAlisPro-abstract goniometer imported rigaku-d*trek images'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.0098030000
_diffrn_orient_matrix_UB_12      -0.0951215000
_diffrn_orient_matrix_UB_13      0.0024501000
_diffrn_orient_matrix_UB_21      0.0386863000
_diffrn_orient_matrix_UB_22      0.0234723000
_diffrn_orient_matrix_UB_23      0.0228879000
_diffrn_orient_matrix_UB_31      -0.0039568000
_diffrn_orient_matrix_UB_32      -0.0055800000
_diffrn_orient_matrix_UB_33      0.0553783000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0648
_diffrn_reflns_av_unetI/netI     0.0341
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            13628
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        24.994
_diffrn_reflns_theta_max         24.994
_diffrn_reflns_theta_min         2.305
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    5.143
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.38169
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.46 (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.734
_exptl_crystal_description       plate
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.41
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.885
_refine_diff_density_min         -0.534
_refine_diff_density_rms         0.162
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.105
_refine_ls_hydrogen_treatment    undef
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         2784
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.105
_refine_ls_R_factor_all          0.0509
_refine_ls_R_factor_gt           0.0466
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0484P)^2^+14.2980P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1218
_refine_ls_wR_factor_ref         0.1276
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2564
_reflns_number_total             2784
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9cc07164d2.cif
_cod_data_source_block           cmrv-as-250_mo
_cod_database_code               7124329
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.783
_shelx_estimated_absorpt_t_min   0.227
_reflns_odcompleteness_completeness 92.53
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     31.02
_olex2_refinement_description
;
;
_shelx_res_checksum              98001
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
- Detector area scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 2.332
_oxdiff_exptl_absorpt_empirical_full_min 0.392