Catalytic asymmetric substitution of ortho-hydroxybenzyl alcohols with tetronic acid-derived enamines: enantioselective synthesis of tetronic acid-derived diarylmethanes
Xu, Meng-Meng; Wang, Hai-Qing; Wan, Ying; He, Guofeng; Yan, Jingjing; Zhang, Shu; Wang, Shu-Liang; Shi, Feng; Organic Chemistry Frontiers 4 (2017) 358–; doi:10.1039/C6QO00549G

data_1553570
_publ_section_title
;
 Catalytic asymmetric substitution of ortho-hydroxybenzyl alcohols with
 tetronic acid-derived enamines: enantioselective synthesis of tetronic
 acid-derived diarylmethanes
;
_journal_issue                   3
_journal_name_full               'Organic Chemistry Frontiers'
_journal_page_first              358
_journal_paper_doi               10.1039/C6QO00549G
_journal_volume                  4
_journal_year                    2017
_chemical_absolute_configuration rmad
_chemical_formula_moiety         'C25 H23 N O3'
_chemical_formula_sum            'C25 H23 N O3'
_chemical_formula_weight         385.44
_space_group_crystal_system      tetragonal
_space_group_IT_number           76
_space_group_name_Hall           'P 4w'
_space_group_name_H-M_alt        'P 41'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2015-11-20
_audit_creation_method
;
Olex2 1.2
(compiled 2014.07.22 svn.r2960 for OlexSys, GUI svn.r4862)
;
_audit_update_record
;
2016-08-12 deposited with the CCDC.
2016-12-12 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.40910(10)
_cell_length_b                   8.40910(10)
_cell_length_c                   29.3175(6)
_cell_measurement_reflns_used    4916
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      68.797
_cell_measurement_theta_min      5.260
_cell_volume                     2073.13(5)
_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  'XL (Sheldrick, 2008)'
_computing_structure_solution    'XS (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_details
;
scan:
	Number of images: 340
	           Slice: -110.0000 - 60.0000
	     Image width: 0.5000
	        Exp time: 16.0000
	   Rotation axis: Omega
	           Omega: 0.0000
	             Chi: 45.0000
	             Phi: 270.0000
	             XTD: 45.3038
	          2theta: -20.1830
;
_diffrn_measurement_device
;
Saturn724+ (2x2 bin mode)
;
_diffrn_measurement_device_details
;
AFC10: Fixed Chi 2 circle
;
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_orient_matrix_type       d*Trek
_diffrn_orient_matrix_UB_11      -0.0416
_diffrn_orient_matrix_UB_12      -0.0191
_diffrn_orient_matrix_UB_13      0.0361
_diffrn_orient_matrix_UB_21      0.0301
_diffrn_orient_matrix_UB_22      -0.0492
_diffrn_orient_matrix_UB_23      0.0086
_diffrn_orient_matrix_UB_31      0.0196
_diffrn_orient_matrix_UB_32      0.0176
_diffrn_orient_matrix_UB_33      0.0318
_diffrn_radiation_detector       CCD
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0707
_diffrn_reflns_av_unetI/netI     0.0639
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -35
_diffrn_reflns_number            15374
_diffrn_reflns_point_group_measured_fraction_full 0.991
_diffrn_reflns_point_group_measured_fraction_max 0.976
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         69.576
_diffrn_reflns_theta_min         5.260
_diffrn_source                   'fine-focus sealed tube'
_diffrn_source_current           24.0000
_diffrn_source_power             1.2000
_diffrn_source_voltage           50.0000
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.646
_exptl_absorpt_correction_T_max  0.9643
_exptl_absorpt_correction_T_min  0.8673
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2008/1 (Bruker,2008) was used for absorption correction. wR2(int) was 0.1644 before and 0.0969 after correction. The Ratio of minimum to maximum transmission is 0.6576. The \l/2 correction factor is 0.0015.'
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.235
_exptl_crystal_description       block
_exptl_crystal_F_000             816
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.201
_refine_diff_density_min         -0.268
_refine_diff_density_rms         0.051
_refine_ls_abs_structure_details
;
 Flack x determined using 1635 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.13(14)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     265
_refine_ls_number_reflns         3807
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0591
_refine_ls_R_factor_gt           0.0574
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1116P)^2^+0.0783P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1527
_refine_ls_wR_factor_ref         0.1550
_reflns_Friedel_coverage         0.924
_reflns_Friedel_fraction_full    0.982
_reflns_Friedel_fraction_max     0.958
_reflns_number_gt                3635
_reflns_number_total             3807
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6qo00549g2.cif
_cod_data_source_block           cu_sf151120_0m
_cod_original_cell_volume        2073.13(7)
_cod_original_sg_symbol_Hall     'P 41'
_cod_database_code               1553570
_shelxl_version_number           2014-3
_shelx_estimated_absorpt_t_max   0.968
_shelx_estimated_absorpt_t_min   0.882
_diffrn_number_total             2330
_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, All O(H) groups
2.a Ternary CH refined with riding coordinates:
 C1(H1A)
2.b Secondary CH2 refined with riding coordinates:
 C4(H4A,H4B)
2.c Aromatic/amide H refined with riding coordinates:
 N1(H1), C7(H7), C8(H8), C10(H10), C11(H11), C15(H15), C16(H16), C18(H18),
 C21(H21), C22(H22), C23(H23), C24(H24), C25(H25)
2.d Idealised Me refined as rotating group:
 C12(H12A,H12B,H12C), C19(H19A,H19B,H19C)
2.e Idealised tetrahedral OH refined as rotating group:
 O3(H3)
;
_shelx_res_checksum              3021
_shelx_hkl_checksum              73254
_olex2_submission_special_instructions 'No special instructions were received'