Green and effective synthesis of multisubstituted α-pyrones via K2CO3 catalyzed formal insertion of ketenimines into C(CO)–C bonds of 1,3-diketones
Luo, Jian; Zhong, Ai-Qing; Qiu, Jia-Hao; Liu, Xiong-Wei; Tian, You-Ping; Zhang, Bao-Hua; Chen, Guo-Shu; Shu, Wei; Liu, Yun-Lin; Green Chemistry 25 (2023) 8057–8067; doi:10.1039/D3GC02073H

data_7247297
_publ_section_title
;
 Green and effective synthesis of multisubstituted \a-pyrones via K2CO3
 catalyzed formal insertion of ketenimines into C(CO)--C bonds of
 1,3-diketones
;
_journal_issue                   20
_journal_name_full               'Green Chemistry'
_journal_page_first              8057
_journal_page_last               8067
_journal_paper_doi               10.1039/D3GC02073H
_journal_volume                  25
_journal_year                    2023
_chemical_formula_moiety         'C40 H33 N O5'
_chemical_formula_sum            'C40 H33 N O5'
_chemical_formula_weight         607.67
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2023-02-21
_audit_creation_method
;
Olex2 1.5
(compiled 2022.04.07 svn.rca3783a0 for OlexSys, GUI svn.r6498)
;
_audit_update_record
;
2023-02-28 deposited with the CCDC.	2023-09-01 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 95.963(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.5520(14)
_cell_length_b                   10.2862(10)
_cell_length_c                   23.234(3)
_cell_measurement_reflns_used    2499
_cell_measurement_temperature    292.99(10)
_cell_measurement_theta_max      22.9540
_cell_measurement_theta_min      2.4250
_cell_volume                     3221.3(6)
_computing_cell_refinement       'CrysAlisPro 1.171.38.43f (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.43f (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.43f (Rigaku OD, 2015)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_environment      air
_diffrn_ambient_temperature      292.99(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 5.2684
_diffrn_detector_type            AtlasS2
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.837
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w     -7.00  26.00   1.00    7.00    --   11.90 -99.00   0.00   33
  2  \w    -12.00  86.00   1.00    7.00    --   11.90  37.00 -60.00   98
  3  \w     16.00  85.00   1.00    7.00    --   11.90  57.00-180.00   69
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, AtlasS2'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0202825000
_diffrn_orient_matrix_UB_12      -0.0070609000
_diffrn_orient_matrix_UB_13      -0.0292126000
_diffrn_orient_matrix_UB_21      -0.0481498000
_diffrn_orient_matrix_UB_22      -0.0061644000
_diffrn_orient_matrix_UB_23      0.0091142000
_diffrn_orient_matrix_UB_31      -0.0064385000
_diffrn_orient_matrix_UB_32      0.0683241000
_diffrn_orient_matrix_UB_33      -0.0022108000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0563
_diffrn_reflns_av_unetI/netI     0.1036
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.837
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            16913
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.837
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.605
_diffrn_reflns_theta_min         2.167
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.23248
_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_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.253
_exptl_crystal_description       block
_exptl_crystal_F_000             1280
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.364
_refine_diff_density_min         -0.214
_refine_diff_density_rms         0.039
_refine_ls_extinction_coef       0.0050(7)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.024
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     418
_refine_ls_number_reflns         7598
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.1788
_refine_ls_R_factor_gt           0.0724
_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^)+(0.0609P)^2^+0.2233P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1445
_refine_ls_wR_factor_ref         0.1931
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3361
_reflns_number_total             7598
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3gc02073h2.cif
_cod_data_source_block           liu0816
_cod_depositor_comments
'Adding full bibliography for 7247297--7247301.cif.'
_cod_original_cell_volume        3221.2(6)
_cod_database_code               7247297
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.993
_shelx_estimated_absorpt_t_min   0.990
_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 Secondary CH2 refined with riding coordinates:
 C31(H31A,H31B), C32(H32A,H32B)
2.b Aromatic/amide H refined with riding coordinates:
 C3(H3), C38(H38), C14(H14), C15(H15), C9(H9), C7(H7), C5(H5), C18(H18),
 C30(H30), C6(H6), C4(H4), C34(H34), C17(H17), C24(H24), C35(H35), C23(H23),
 C29(H29), C22(H22), C28(H28), C26(H26), C20(H20), C27(H27), C21(H21)
2.c Idealised Me refined as rotating group:
 C40(H40A,H40B,H40C), C39(H39A,H39B,H39C)
;
_shelx_res_checksum              19232
_olex2_date_sample_data_collection 2020-08-16
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 3.809
_oxdiff_exptl_absorpt_empirical_full_min 0.341