One-Pot Domino Friedel-Crafts Acylation/Annulation between Alkynes and 2-Methoxybenzoyl Chlorides: Synthesis of 2,3-Disubstituted Chromen-4-one Derivatives.
Bam, Radha; Chalifoux, Wesley A.; The Journal of organic chemistry 83 (2018) 9929–9938; doi:10.1021/acs.joc.8b01357

data_4035096
_publ_section_title
;
 One-Pot Domino Friedel-Crafts Acylation/Annulation between Alkynes and
 2-Methoxybenzoyl Chlorides: Synthesis of 2,3-Disubstituted Chromen-4-one
 Derivatives.
;
_journal_issue                   17
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              9929
_journal_page_last               9938
_journal_paper_doi               10.1021/acs.joc.8b01357
_journal_volume                  83
_journal_year                    2018
_chemical_formula_moiety         'C19 H17 N O2 Si'
_chemical_formula_sum            'C19 H17 N O2 Si'
_chemical_formula_weight         319.42
_space_group_crystal_system      monoclinic
_space_group_IT_number           9
_space_group_name_Hall           'C -2yc'
_space_group_name_H-M_alt        'C 1 c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2017-03-28
_audit_creation_method
;
Olex2 1.2
(compiled 2017.02.23 svn.r3390 for OlexSys, GUI svn.r5320)
;
_cell_angle_alpha                90
_cell_angle_beta                 90.847(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.2666(7)
_cell_length_b                   32.998(4)
_cell_length_c                   8.0430(9)
_cell_measurement_reflns_used    5155
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      29.93
_cell_measurement_theta_min      2.47
_cell_volume                     1663.0(3)
_computing_cell_refinement       'SAINT v8.34A (Bruker, 2013)'
_computing_data_reduction        'SAINT v8.34A (Bruker, 2013)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.15
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 1.000
_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  0.0489
_diffrn_reflns_av_unetI/netI     0.0461
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       44
_diffrn_reflns_limit_k_min       -44
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            16304
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.134
_diffrn_reflns_theta_min         2.469
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.150
_exptl_absorpt_correction_T_max  0.7460
_exptl_absorpt_correction_T_min  0.6230
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/4 (Bruker,2014/4) was used for absorption correction.
wR2(int) was 0.0683 before and 0.0497 after correction.
The Ratio of minimum to maximum transmission is 0.8351.
The \l/2 correction factor is 0.00150.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.276
_exptl_crystal_description       block
_exptl_crystal_F_000             672
_exptl_crystal_size_max          0.134
_exptl_crystal_size_mid          0.111
_exptl_crystal_size_min          0.035
_refine_diff_density_max         0.319
_refine_diff_density_min         -0.210
_refine_diff_density_rms         0.049
_refine_ls_abs_structure_details
;
 Flack x determined using 1849 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.06(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     211
_refine_ls_number_reflns         4466
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0460
_refine_ls_R_factor_gt           0.0394
_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^)+(0.0449P)^2^+0.7287P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0871
_refine_ls_wR_factor_ref         0.0900
_reflns_Friedel_coverage         0.988
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.998
_reflns_number_gt                4074
_reflns_number_total             4466
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo8b01357_si_002.cif
_cod_data_source_block           rb006_0ma_a
_cod_database_code               4035096
_shelxl_version_number           2014/6
_shelx_estimated_absorpt_t_max   0.995
_shelx_estimated_absorpt_t_min   0.980
_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:
 C2(H2), C3(H3), C4(H4), C5(H5), C11(H11), C12(H12), C14(H14), C15(H15)
2.b Idealised Me refined as rotating group:
 C17(H17A,H17B,H17C), C18(H18A,H18B,H18C), C19(H19A,H19B,H19C)
;
_shelx_res_checksum              6932
_shelx_hkl_checksum              77475
_olex2_submission_special_instructions 'No special instructions were received'