Enantiodivergent Synthesis of Tertiary α-Aryl 1-Indanones: Evidence Toward Disparate Mechanisms in the Palladium-Catalyzed Decarboxylative Asymmetric Protonation
Kingston, Cian; Guiry, Patrick J.; The Journal of Organic Chemistry  (2017) –; doi:10.1021/acs.joc.7b00303

data_4032407
_publ_section_title
;
 Enantiodivergent Synthesis of Tertiary \a-Aryl 1-Indanones: Evidence
 Toward Disparate Mechanisms in the Palladium-Catalyzed Decarboxylative
 Asymmetric Protonation
;
_journal_name_full               'The Journal of Organic Chemistry'
_journal_paper_doi               10.1021/acs.joc.7b00303
_journal_year                    2017
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C18 H18 O4'
_chemical_formula_sum            'C18 H18 O4'
_chemical_formula_weight         298.32
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 92.2063(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   7.03801(6)
_cell_length_b                   16.8278(1)
_cell_length_c                   25.1920(2)
_cell_measurement_reflns_used    38259
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      76.6280
_cell_measurement_theta_min      3.1470
_cell_volume                     2981.38(4)
_computing_cell_refinement
; 
CrysAlisPro, Agilent Technologies, 
Version 1.171.36.24a (release 19-12-2012 CrysAlis171 .NET) 
(compiled Dec 19 2012,11:08:27) 
;
_computing_data_collection
; 
CrysAlisPro, Agilent Technologies, 
Version 1.171.36.24a (release 19-12-2012 CrysAlis171 .NET) 
(compiled Dec 19 2012,11:08:27) 
;
_computing_data_reduction
; 
CrysAlisPro, Agilent Technologies, 
Version 1.171.36.24a (release 19-12-2012 CrysAlis171 .NET) 
(compiled Dec 19 2012,11:08:27) 
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 10.3196
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'SuperNova (Cu) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0314
_diffrn_reflns_av_sigmaI/netI    0.0191
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            61541
_diffrn_reflns_theta_full        77.00
_diffrn_reflns_theta_max         77.00
_diffrn_reflns_theta_min         3.16
_exptl_absorpt_coefficient_mu    0.764
_exptl_absorpt_correction_T_max  0.930
_exptl_absorpt_correction_T_min  0.880
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
; 
CrysAlisPro, Agilent Technologies, 
Version 1.171.36.24a (release 19-12-2012 CrysAlis171 .NET) 
(compiled Dec 19 2012,11:08:27) 
Analytical numeric absorption correction using a multifaceted crystal 
model based on expressions derived by R.C. Clark & J.S. Reid. 
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897) 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.329
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1264
_exptl_crystal_size_max          0.2317
_exptl_crystal_size_mid          0.1518
_exptl_crystal_size_min          0.1166
_refine_diff_density_max         0.541
_refine_diff_density_min         -0.277
_refine_diff_density_rms         0.065
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.02(14)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     815
_refine_ls_number_reflns         12442
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0568
_refine_ls_R_factor_gt           0.0565
_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^)+(0.0920P)^2^+1.8964P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1512
_refine_ls_wR_factor_ref         0.1516
_reflns_number_gt                12330
_reflns_number_total             12442
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            jo7b00303_si_002.cif
_cod_data_source_block           gui96
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4032407