Design and functionalization of bioactive benzoxazines. An unexpected ortho-substitution effect
Arendt-Pindel, Agata; Marszałek-Harych, Aleksandra; Gębarowska, Elżbieta; Gębarowski, Tomasz; Jędrzkiewicz, Dawid; Pląskowska, Elżbieta; Zalewski, Dariusz; Gulia, Nurbey; Szafert, Sławomir; Ejfler, Jolanta; New Journal of Chemistry 43 (2019) 12042–; doi:10.1039/C8NJ06440G

data_7058592
_publ_section_title
;
 Design and functionalization of bioactive benzoxazines. An unexpected
 ortho-substitution effect
;
_journal_issue                   30
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              12042
_journal_paper_doi               10.1039/C8NJ06440G
_journal_volume                  43
_journal_year                    2019
_chemical_formula_moiety         '1.95(C26 H33 N O), 0.05(C24 H32 N O I)'
_chemical_formula_sum            'C51.9 H65.95 I0.05 N2 O2'
_chemical_formula_weight         756.16
_chemical_name_systematic
;
6,8-di-tert-butyl-3-(4-ethynylphenethyl)-3,4-dihydro-2H-benzo[e][1,3]oxazine
;
_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'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2017/1
_audit_update_record
;
2018-04-13 deposited with the CCDC.    2019-07-02 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 105.84(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   19.608(3)
_cell_length_b                   10.754(2)
_cell_length_c                   21.654(4)
_cell_measurement_reflns_used    23271
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      32.4997
_cell_measurement_theta_min      2.9275
_cell_volume                     4392.7(15)
_computing_cell_refinement
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.33.66 (release 28-04-2010 CrysAlis171 .NET)
(compiled Apr 28 2010,14:27:37)
;
_computing_data_collection
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CrysAlis CCD, Oxford Diffraction Ltd.,
Version 1.171.33.66 (release 28-04-2010 CrysAlis171 .NET)
(compiled Apr 28 2010,14:27:37)
;
_computing_data_reduction
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.33.66 (release 28-04-2010 CrysAlis171 .NET)
(compiled Apr 28 2010,14:27:37)
;
_computing_structure_refinement  'SHELXL-2017/1 (Sheldrick, 2017)'
_computing_structure_solution    'SHELXS-2013/1 (Sheldrick, 2013)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3359
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.978
_diffrn_measurement_device_type  'Xcalibur, Sapphire2, large Be window'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0473
_diffrn_reflns_av_unetI/netI     0.0512
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.978
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            68555
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.978
_diffrn_reflns_theta_full        25.500
_diffrn_reflns_theta_max         32.573
_diffrn_reflns_theta_min         3.120
_diffrn_source                   'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.103
_exptl_absorpt_correction_T_max  0.985
_exptl_absorpt_correction_T_min  0.960
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.33.66 (release 28-04-2010 CrysAlis171 .NET)
(compiled Apr 28 2010,14:27:37)
Analytical numeric absorption correction using a multifaceted crystal
            model based on expressions derived by R.C. Clark & J.S. Reid.
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.143
_exptl_crystal_description       block
_exptl_crystal_F_000             1640
_exptl_crystal_size_max          0.560
_exptl_crystal_size_mid          0.440
_exptl_crystal_size_min          0.160
_refine_diff_density_max         0.429
_refine_diff_density_min         -0.221
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.909
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     521
_refine_ls_number_reflns         15649
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.909
_refine_ls_R_factor_all          0.0786
_refine_ls_R_factor_gt           0.0449
_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^)+(0.0695P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1080
_refine_ls_wR_factor_ref         0.1161
_reflns_Friedel_coverage         0.000
_reflns_number_gt                9899
_reflns_number_total             15649
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8nj06440g2.cif
_cod_data_source_block           16
_cod_depositor_comments
'Adding full bibliography for 7058586--7058596.cif.'
_cod_original_cell_volume        4392.8(15)
_cod_original_formula_sum        'C51.90 H65.95 I0.05 N2 O2'
_cod_database_code               7058592
_shelx_shelxl_version_number     2017/1
_shelx_estimated_absorpt_t_min   0.945
_shelx_estimated_absorpt_t_max   0.984
_shelx_res_checksum              60110