Copper-Catalyzed Desaturation of Lactones, Lactams, and Ketones under pH-Neutral Conditions.
Chen, Ming; Dong, Guangbin; Journal of the American Chemical Society 141 (2019) 14889–14897; doi:10.1021/jacs.9b07932

data_4127627
_publ_section_title
;
 Copper-Catalyzed Desaturation of Lactones, Lactams, and Ketones under
 pH-Neutral Conditions.
;
_journal_issue                   37
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              14889
_journal_page_last               14897
_journal_paper_doi               10.1021/jacs.9b07932
_journal_volume                  141
_journal_year                    2019
_chemical_formula_moiety         'C22 H22 O4'
_chemical_formula_sum            'C22 H22 O4'
_chemical_formula_weight         350.39
_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'
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2019-07-08
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.4604(14)
_cell_length_b                   11.9775(12)
_cell_length_c                   10.6350(11)
_cell_measurement_reflns_used    3510
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.37
_cell_measurement_theta_min      2.56
_cell_volume                     1714.6(3)
_computing_cell_refinement       'SAINT V.8.35A (Bruker AXS Inc., 2013)'
_computing_data_collection       'APEX3 v.2015.9-0 (Bruker AXS Inc., 2015)'
_computing_data_reduction        'SAINT V.8.35A (Bruker AXS Inc., 2013)'
_computing_molecular_graphics
;
OLEX2: a complete structure solution, refinement and analysis program 
Dolomanov et al., 2009

Mercury: visualization and analysis of crystal structures
Macrae, et al., 2006

O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann.
J. Appl. Cryst. (2009). 42, 339-341;

C. F. Macrae, P. R. Edgington, P. McCabe, E. Pidcock, G. P. Shields, R. Taylor,
M. Towler and J. van de Streek, J. Appl. Cryst. (2006). 39, 453-457.
;
_computing_publication_material
;
 APEX3 v.2015.5-2 (Bruker AXS Inc., 2015)
 OLEX2 (Dolomanov et al., 2009)
;
_computing_structure_refinement  'XL-2018/3 (Sheldrick, 2015b)'
_computing_structure_solution    'XT 2014/5 (Sheldrick, 2015a)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'Bruker PHOTON 100'
_diffrn_detector_area_resol_mean 10.4167
_diffrn_detector_type            CMOS
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  mirrors
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0506
_diffrn_reflns_av_unetI/netI     0.0479
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            12571
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.348
_diffrn_reflns_theta_min         2.276
_diffrn_source                   'micro-focus X-ray tube'
_diffrn_source_type              'INCOATEC ImuS'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_T_max  0.7454
_exptl_absorpt_correction_T_min  0.6406
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1062 before and 0.0532 after correction.
The Ratio of minimum to maximum transmission is 0.8594.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            'clear colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.357
_exptl_crystal_description       prism
_exptl_crystal_F_000             744
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.209
_refine_diff_density_min         -0.158
_refine_diff_density_rms         0.040
_refine_ls_abs_structure_details
;
 Flack x determined using 1146 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.2(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     235
_refine_ls_number_reflns         3485
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0580
_refine_ls_R_factor_gt           0.0388
_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^)+(0.0273P)^2^+0.4109P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0706
_refine_ls_wR_factor_ref         0.0772
_reflns_Friedel_coverage         0.892
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.996
_reflns_number_gt                2857
_reflns_number_total             3485
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja9b07932_si_002.cif
_cod_data_source_block           ming-lactone
_cod_database_code               4127627
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.995
_shelx_estimated_absorpt_t_min   0.991
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C3(H3A,H3B), C4(H4A,H4B), C14(H14A,H14B), C5(H5A,H5B), C15(H15A,H15B),
 C16(H16A,H16B)
2.b Aromatic/amide H refined with riding coordinates:
 C22(H22), C7(H7), C8(H8), C21(H21), C11(H11), C10(H10), C18(H18), C9(H9),
 C20(H20), C19(H19)
;
_shelx_res_checksum              71752
_shelx_hkl_checksum              35215
_olex2_submission_special_instructions 'No special instructions were received'