N-heterocyclic Carbene–Cu-Catalyzed Enantioselective Conjugate Additions with Alkenylboronic Esters as Nucleophiles
Chong, Qinglei; Yue, Zhenting; Zhang, Shuoqing; Ji, Chonglei; Cheng, Fengchang; Zhang, Haiyan; Hong, Xin; Meng, Fanke; ACS Catalysis  (2017) 5693–; doi:10.1021/acscatal.7b02132

data_4514172
_publ_section_title
;
 N-heterocyclic Carbene--Cu-Catalyzed Enantioselective Conjugate Additions
 with Alkenylboronic Esters as Nucleophiles
;
_journal_name_full               'ACS Catalysis'
_journal_page_first              5693
_journal_paper_doi               10.1021/acscatal.7b02132
_journal_year                    2017
_chemical_absolute_configuration rmad
_chemical_formula_moiety         'C22 H24 O4'
_chemical_formula_sum            'C22 H24 O4'
_chemical_formula_weight         352.41
_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'
_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     dual
_audit_creation_date             2016-12-27
_audit_creation_method
;
Olex2 1.2
(compiled 2016.11.30 svn.r3356 for OlexSys, GUI svn.r5269)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.4622(7)
_cell_length_b                   9.6850(8)
_cell_length_c                   22.9564(19)
_cell_measurement_reflns_used    7888
_cell_measurement_temperature    130
_cell_measurement_theta_max      33.093
_cell_measurement_theta_min      2.283
_cell_volume                     1881.4(3)
_computing_cell_refinement       'SAINT v7.68A (Bruker, 2009)'
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_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      130
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.952
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0255
_diffrn_reflns_av_unetI/netI     0.0290
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.952
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            21317
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.932
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         33.463
_diffrn_reflns_theta_min         1.774
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.085
_exptl_absorpt_correction_T_max  0.7466
_exptl_absorpt_correction_T_min  0.6947
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.0503 before and 0.0394 after correction.
The Ratio of minimum to maximum transmission is 0.9305.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.244
_exptl_crystal_description       block
_exptl_crystal_F_000             752
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.224
_refine_diff_density_min         -0.238
_refine_diff_density_rms         0.052
_refine_ls_abs_structure_details
;
 Flack x determined using 2357 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   1.015
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     237
_refine_ls_number_reflns         6848
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0476
_refine_ls_R_factor_gt           0.0390
_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^)+(0.0564P)^2^+0.1872P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0940
_refine_ls_wR_factor_ref         0.0992
_reflns_Friedel_coverage         0.743
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.907
_reflns_number_gt                6010
_reflns_number_total             6848
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs7b02132_si_002.cif
_cod_data_source_block           mo_dm16903_0m
_cod_database_code               4514172
_shelx_estimated_absorpt_t_max   0.996
_shelx_estimated_absorpt_t_min   0.983
_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.a Ternary CH refined with riding coordinates:
 C1(H1), C2(H2)
2.b Secondary CH2 refined with riding coordinates:
 C12(H12A,H12B), C15(H15A,H15B)
2.c Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4), C6(H6), C7(H7), C8(H8), C9(H9), C10(H10), C18(H18), C19(H19),
 C20(H20), C21(H21), C22(H22)
2.d Idealised Me refined as rotating group:
 C13(H13A,H13B,H13C), C16(H16A,H16B,H16C)
;
_shelx_res_checksum              27441
_shelx_hkl_checksum              75593
_shelx_shelxl_version_number     2016/6
_olex2_submission_special_instructions 'No special instructions were received'