Highly asymmetric aldol reaction of isatins and ketones catalyzed by chiral bifunctional primary-amine organocatalyst on water.
Lv, Xiao-Xiong; Liu, Ning; Chen, Fei; Zhang, Hao; Du, Zhi-Hong; Wang, Pei; Yuan, Meng; Da, Chao Shan; Organic & biomolecular chemistry 21 (2023) 8695–8701; doi:10.1039/d3ob01227a

data_7159590
_publ_section_title
;
 Highly asymmetric aldol reaction of isatins and ketones catalyzed by
 chiral bifunctional primary-amine organocatalyst on water.
;
_journal_issue                   43
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              8695
_journal_page_last               8701
_journal_paper_doi               10.1039/d3ob01227a
_journal_volume                  21
_journal_year                    2023
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C14 H14 Cl N O3'
_chemical_formula_sum            'C14 H14 Cl N O3'
_chemical_formula_weight         279.71
_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             2022-06-14
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2022-07-06 deposited with the CCDC.	2023-10-13 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.2587(2)
_cell_length_b                   11.3133(3)
_cell_length_c                   15.3314(4)
_cell_measurement_reflns_used    9811
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      72.04
_cell_measurement_theta_min      4.86
_cell_volume                     1259.01(6)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_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      173.0
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0533
_diffrn_reflns_av_unetI/netI     0.0207
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            30428
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         72.038
_diffrn_reflns_theta_min         4.858
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.730
_exptl_absorpt_correction_T_max  0.7536
_exptl_absorpt_correction_T_min  0.6446
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1112 before and 0.0721 after correction. The Ratio of minimum to maximum transmission is 0.8554. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            'clear light yellow'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.476
_exptl_crystal_description       block
_exptl_crystal_F_000             584
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.302
_refine_diff_density_min         -0.174
_refine_diff_density_rms         0.041
_refine_ls_abs_structure_details
;
 Flack x determined using 985 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.029(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.086
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     173
_refine_ls_number_reflns         2467
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.086
_refine_ls_R_factor_all          0.0307
_refine_ls_R_factor_gt           0.0298
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0424P)^2^+0.2938P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0761
_refine_ls_wR_factor_ref         0.0769
_reflns_Friedel_coverage         0.714
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                2394
_reflns_number_total             2467
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3ob01227a2.cif
_cod_data_source_block           11_CCDC1
_cod_depositor_comments
'Adding full bibliography for 7159589--7159590.cif.'
_cod_database_code               7159590
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.669
_shelx_estimated_absorpt_t_min   0.625
_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 O(H) groups
2.a Ternary CH refined with riding coordinates:
 C9(H9)
2.b Secondary CH2 refined with riding coordinates:
 C11(H11A,H11B), C12(H12A,H12B), C13(H13A,H13B), C14(H14A,H14B)
2.c Aromatic/amide H refined with riding coordinates:
 C2(H2A), C3(H3), C4(H4), N1(H1)
2.d Idealised tetrahedral OH refined as rotating group:
 O2(H2)
;
_shelx_res_checksum              45649
_olex2_submission_special_instructions 'No special instructions were received'