Synthesis of Tricyclic Spiranoid Lactones via I2/Sm(II)- and I2/Pd(0)-Mediated Cyclizations of a Common Cycloalkylmethylene Precursor.
Mostinski, Yelena; Valerio, Viviana; Lankri, David; Tsvelikhovsky, Dmitry; The Journal of organic chemistry 80 (2015) 10464–10473; doi:10.1021/acs.joc.5b01278

data_4036255
_publ_section_title
;
 Synthesis of Tricyclic Spiranoid Lactones via I2/Sm(II)- and
 I2/Pd(0)-Mediated Cyclizations of a Common Cycloalkylmethylene Precursor.
;
_journal_issue                   21
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              10464
_journal_page_last               10473
_journal_paper_doi               10.1021/acs.joc.5b01278
_journal_volume                  80
_journal_year                    2015
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C12 H17 I O2'
_chemical_formula_sum            'C12 H17 I O2'
_chemical_formula_weight         320.16
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.064(1)
_cell_length_b                   8.364(1)
_cell_length_c                   18.272(3)
_cell_measurement_temperature    173(1)
_cell_volume                     1232.4(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(1)
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0235
_diffrn_reflns_av_sigmaI/netI    0.0190
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            13728
_diffrn_reflns_theta_full        27.99
_diffrn_reflns_theta_max         27.99
_diffrn_reflns_theta_min         2.23
_exptl_absorpt_coefficient_mu    2.578
_exptl_absorpt_correction_T_max  0.7646
_exptl_absorpt_correction_T_min  0.5885
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS V2.05'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.726
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Shapeless
_exptl_crystal_F_000             632
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.852
_refine_diff_density_min         -0.811
_refine_diff_density_rms         0.084
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.47(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.261
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     136
_refine_ls_number_reflns         2901
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.261
_refine_ls_R_factor_all          0.0302
_refine_ls_R_factor_gt           0.0299
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0236P)^2^+1.4316P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0653
_refine_ls_wR_factor_ref         0.0654
_reflns_number_gt                2879
_reflns_number_total             2901
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo5b01278_si_003.cif
_cod_data_source_block           compound_10b
_cod_depositor_comments
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The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Orthorhombic' was changed
to 'orthorhombic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               4036255