Palladium-Catalyzed Dual Ligand-Enabled Alkylation of Silyl Enol Ether and Enamide under Irradiation: Scope, Mechanism, and Theoretical Elucidation of Hybrid Alkyl Pd(I)-Radical Species
Zhao, Bin; Shang, Rui; Wang, Guang-Zu; Wang, Shaohong; Chen, Hui; Fu, Yao; ACS Catalysis  (2020) 1334–; doi:10.1021/acscatal.9b04699

data_4517292
_publ_section_title
;
 Palladium-Catalyzed Dual Ligand-Enabled Alkylation of Silyl Enol Ether
 and Enamide under Irradiation: Scope, Mechanism, and Theoretical
 Elucidation of Hybrid Alkyl Pd(I)-Radical Species
;
_journal_name_full               'ACS Catalysis'
_journal_page_first              1334
_journal_paper_doi               10.1021/acscatal.9b04699
_journal_year                    2020
_chemical_absolute_configuration rmad
_chemical_formula_moiety         'C18 H23 N O'
_chemical_formula_sum            'C18 H23 N O'
_chemical_formula_weight         269.37
_space_group_crystal_system      tetragonal
_space_group_IT_number           92
_space_group_name_Hall           'P 4abw 2nw'
_space_group_name_H-M_alt        'P 41 21 2'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_audit_creation_date             2019-04-04
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3510 for OlexSys, GUI svn.r5506)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   9.27820(10)
_cell_length_b                   9.27820(10)
_cell_length_c                   39.8985(13)
_cell_measurement_reflns_used    892
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      80
_cell_measurement_theta_min      4
_cell_volume                     3434.66(12)
_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      296
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0450
_diffrn_reflns_av_unetI/netI     0.0237
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       49
_diffrn_reflns_limit_l_min       -49
_diffrn_reflns_number            22382
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         73.718
_diffrn_reflns_theta_min         4.433
_exptl_absorpt_coefficient_mu    0.492
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.042
_exptl_crystal_description       block
_exptl_crystal_F_000             1168
_refine_diff_density_max         0.239
_refine_diff_density_min         -0.218
_refine_diff_density_rms         0.038
_refine_ls_abs_structure_details
;
 Flack x determined using 797 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.1(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     189
_refine_ls_number_reflns         3462
_refine_ls_number_restraints     18
_refine_ls_restrained_S_all      1.150
_refine_ls_R_factor_all          0.0873
_refine_ls_R_factor_gt           0.0735
_refine_ls_shift/su_max          0.013
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1199P)^2^+0.6654P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2262
_refine_ls_wR_factor_ref         0.2407
_reflns_Friedel_coverage         0.630
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.992
_reflns_number_gt                2607
_reflns_number_total             3462
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs9b04699_si_005.cif
_cod_data_source_block           zb-1373-1
_cod_original_cell_volume        3434.66(13)
_cod_database_code               4517292
_shelx_shelxl_version_number     2014/7
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Uiso/Uaniso restraints and constraints
C13 \\sim C14 \\sim C15 \\sim C16: within 2A with sigma of 0.002 and sigma for
terminal atoms of 0.01
3.a Ternary CH refined with riding coordinates:
 C1(H1A)
3.b Secondary CH2 refined with riding coordinates:
 C12(H12A,H12B)
3.c Aromatic/amide H refined with riding coordinates:
 C3(H3), C5(H5), C6(H6), C7(H7), C8(H8), C10(H10), C11(H11)
3.d Idealised Me refined as rotating group:
 C14(H14A,H14B,H14C), C15(H15A,H15B,H15C), C16(H16A,H16B,H16C), C18(H18A,H18B,
 H18C)
;
_shelx_res_checksum              43684
_shelx_hkl_checksum              54351
_olex2_submission_special_instructions 'No special instructions were received'