Metal-Free Alkene Carbooxygenation Following Tandem Intramolecular Alkoxylation/Claisen Rearrangement: Stereocontrolled Access to Bridged [4.2.1] Lactones
Li, Long; Zhu, Xin-Qi; Zhang, Ying-Qi; Bu, Hao-Zhen; Yuan, Peng; Chen, Jinyu; Su, Jingyi; Deng, Xianming; Ye, Long-Wu; Chemical Science  (2019) –; doi:10.1039/C9SC00079H

data_1550530
_publ_section_title
;
 Metal-Free Alkene Carbooxygenation Following Tandem Intramolecular
 Alkoxylation/Claisen Rearrangement: Stereocontrolled Access to Bridged
 [4.2.1] Lactones
;
_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/C9SC00079H
_journal_year                    2019
_chemical_formula_moiety         'C22 H21 N O4 S'
_chemical_formula_sum            'C22 H21 N O4 S'
_chemical_formula_weight         395.46
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2018-01-04
_audit_creation_method
;
Olex2 1.2
(compiled 2016.09.09 svn.r3337 for OlexSys, GUI svn.r5227)
;
_audit_update_record
;
2018-03-20 deposited with the CCDC.
2019-01-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 92.893(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.780(3)
_cell_length_b                   9.3801(19)
_cell_length_c                   14.410(3)
_cell_measurement_reflns_used    4468
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      27.37
_cell_measurement_theta_min      2.59
_cell_volume                     1860.2(7)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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    'Bruker SHELXTL'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0316
_diffrn_reflns_av_unetI/netI     0.0357
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            15652
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.485
_diffrn_reflns_theta_min         1.995
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    0.204
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.412
_exptl_crystal_description       block
_exptl_crystal_F_000             832
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: hexane and ethyl acetate'
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.470
_refine_diff_density_min         -0.227
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         4240
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0629
_refine_ls_R_factor_gt           0.0530
_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^)+(0.0674P)^2^+0.7351P]
 where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1299
_refine_ls_wR_factor_ref         0.1365
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3644
_reflns_number_total             4240
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9sc00079h2.cif
_cod_data_source_block           y1214m
_cod_original_cell_volume        1860.2(6)
_cod_database_code               1550530
_shelxl_version_number           2013-2
_shelx_estimated_absorpt_t_max   0.980
_shelx_estimated_absorpt_t_min   0.980
_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 Ternary CH refined with riding coordinates:
 C18(H18), C19(H19), C21(H21)
2.b Secondary CH2 refined with riding coordinates:
 C16(H16a,H16b), C20(H20a,H20b)
2.c Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4), C6(H6), C7(H7), C8(H8), C9(H9), C10(H10), C11(H11)
2.d Idealised Me refined as rotating group:
 C1(H1a,H1b,H1c), C17(H17a,H17b,H17c)
;
_olex2_submission_special_instructions 'No special instructions were received'