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_4517295
_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 ad
_chemical_formula_moiety         'C16 H23 N O3'
_chemical_formula_sum            'C16 H23 N O3'
_chemical_formula_weight         277.35
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2019-03-21
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.47792(11)
_cell_length_b                   11.47657(11)
_cell_length_c                   15.35077(16)
_cell_measurement_reflns_used    11167
_cell_measurement_temperature    291(2)
_cell_measurement_theta_max      73.8140
_cell_measurement_theta_min      3.8160
_cell_volume                     1669.76(3)
_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    'ShelXD (Sheldrick, 2008)'
_diffrn_ambient_temperature      291(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, AtlasS2'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0241
_diffrn_reflns_av_unetI/netI     0.0128
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.992
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            15780
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.984
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         73.891
_diffrn_reflns_theta_min         4.811
_exptl_absorpt_coefficient_mu    0.608
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.51137
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.43f (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_density_diffrn    1.103
_exptl_crystal_description       block
_exptl_crystal_F_000             600
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.19
_refine_diff_density_max         0.391
_refine_diff_density_min         -0.193
_refine_diff_density_rms         0.047
_refine_ls_abs_structure_details
;
 Flack x determined using 1322 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons and Flack (2004), Acta Cryst. A60, s61).
;
_refine_ls_abs_structure_Flack   0.07(7)
_refine_ls_extinction_coef       0.014(2)
_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   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     187
_refine_ls_number_reflns         3341
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0542
_refine_ls_R_factor_gt           0.0530
_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^)+(0.1068P)^2^+0.1615P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1623
_refine_ls_wR_factor_ref         0.1647
_reflns_Friedel_coverage         0.729
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.974
_reflns_number_gt                3223
_reflns_number_total             3341
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs9b04699_si_006.cif
_cod_data_source_block           zb-1384
_cod_original_cell_volume        1669.77(3)
_cod_database_code               4517295
_shelxl_version_number           2013-4
_shelx_estimated_absorpt_t_max   0.893
_shelx_estimated_absorpt_t_min   0.868
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups, All N(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C1(H1A)
2.b Secondary CH2 refined with riding coordinates:
 C10(H10A,H10B)
2.c Aromatic/amide H refined with riding coordinates:
 N1(H1), C3(H3), C4(H4), C7(H7), C6(H6)
2.d Idealised Me refined as rotating group:
 C16(H16A,H16B,H16C), C13(H13A,H13B,H13C), C9(H9A,H9B,H9C), C12(H12A,H12B,
 H12C), C14(H14A,H14B,H14C)
;
_shelx_res_checksum              58539
_shelx_hkl_checksum              56065
_olex2_submission_special_instructions 'No special instructions were received'