A two-step access to fused-/spiro-polycyclic frameworks <i>via</i> double Heck cascade and acid-driven processes.
Goel, Komal; Satyanarayana, Gedu; Organic & biomolecular chemistry 21 (2023) 6919–6925; doi:10.1039/d3ob01112g

data_7159533
_publ_section_title
;
 A two-step access to fused-/spiro-polycyclic frameworks <i>via</i> double
 Heck cascade and acid-driven processes.
;
_journal_issue                   34
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              6919
_journal_page_last               6925
_journal_paper_doi               10.1039/d3ob01112g
_journal_volume                  21
_journal_year                    2023
_chemical_formula_moiety         'C25 H18 O3'
_chemical_formula_sum            'C25 H18 O3'
_chemical_formula_weight         366.39
_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2023-05-23
_audit_creation_method
;
Olex2 1.3
(compiled 2020.11.12 svn.r5f609507 for OlexSys, GUI svn.r6408)
;
_audit_update_record
;
2023-06-13 deposited with the CCDC.	2023-08-14 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.722(5)
_cell_length_b                   12.020(6)
_cell_length_c                   16.073(6)
_cell_measurement_reflns_used    1394
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      19.28
_cell_measurement_theta_min      2.69
_cell_volume                     1878.3(15)
_computing_cell_refinement       'SAINT V8.40B (?, 2016)'
_computing_data_reduction        'SAINT V8.40B (?, 2016)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      273.15
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.976
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1120
_diffrn_reflns_av_unetI/netI     0.1215
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.976
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            16411
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.968
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.501
_diffrn_reflns_theta_min         2.116
_diffrn_source_current           1.4
_diffrn_source_power             0.07
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  0.7455
_exptl_absorpt_correction_T_min  0.6570
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1313 before and 0.0775 after correction.
The Ratio of minimum to maximum transmission is 0.8813.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            'clear whiteish white'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   whiteish
_exptl_crystal_colour_primary    white
_exptl_crystal_density_diffrn    1.296
_exptl_crystal_description       block
_exptl_crystal_F_000             768
_exptl_crystal_preparation       CH2Cl2
_exptl_crystal_recrystallization_method THF
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.153
_refine_diff_density_min         -0.233
_refine_diff_density_rms         0.046
_refine_ls_abs_structure_details
;
 Flack x determined using 662 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.1(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.960
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         4171
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.960
_refine_ls_R_factor_all          0.1723
_refine_ls_R_factor_gt           0.0596
_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^)+(0.0550P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1217
_refine_ls_wR_factor_ref         0.1623
_reflns_Friedel_coverage         0.914
_reflns_Friedel_fraction_full    0.996
_reflns_Friedel_fraction_max     0.959
_reflns_number_gt                1868
_reflns_number_total             4171
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3ob01112g2.cif
_cod_data_source_block           mo_gs_kg_341_1_0m_a
_cod_depositor_comments
'Adding full bibliography for 7159532--7159534.cif.'
_cod_database_code               7159533
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.995
_shelx_estimated_absorpt_t_min   0.993
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C3(H3), C8(H8), C9(H9), C10(H10), C11(H11), C16(H16), C19(H19), C20(H20),
 C21(H21), C22(H22), C24(H24), C25(H25)
2.b Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C), C13(H13A,H13B,H13C)
;
_shelx_res_checksum              94321
_olex2_exptl_crystal_mounting_method Cryoloop
_olex2_submission_special_instructions 'No special instructions were received'