Versatile Approaches for the Synthesis of Fused-Ring γ-Lactones Utilizing Cyclopropane Intermediates
Newhouse, Timothy R.; Kaib, Philip S. J.; Gross, Andrew W.; Corey, E. J.; Organic Letters 15 (2013) 1591–; doi:10.1021/ol400362t

data_1511895
_publ_section_title
;
 Versatile Approaches for the Synthesis of Fused-Ring \g-Lactones
 Utilizing Cyclopropane Intermediates
;
_journal_issue                   7
_journal_name_full               'Organic Letters'
_journal_page_first              1591
_journal_paper_doi               10.1021/ol400362t
_journal_volume                  15
_journal_year                    2013
_chemical_absolute_configuration ad
_chemical_formula_sum            'C10 H12 O3'
_chemical_formula_weight         180.19
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_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            8
_cell_length_a                   9.77070(10)
_cell_length_b                   12.1601(2)
_cell_length_c                   14.4735(2)
_cell_measurement_reflns_used    9816
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      69.1
_cell_measurement_theta_min      4.75
_cell_volume                     1719.64(4)
_computing_cell_refinement       'SAINT 7.46A (Bruker-AXS, 2009)'
_computing_data_collection       'APEX2 v2009.3.0 (Bruker-AXS, 2009)'
_computing_data_reduction        'SAINT 7.46A (Bruker-AXS, 2009)'
_computing_molecular_graphics    'Bruker SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'Bruker SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type
;
Bruker D8 goniometer with CCD area detector  
;
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'I\mS microfocus tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0304
_diffrn_reflns_av_sigmaI/netI    0.0155
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            23785
_diffrn_reflns_theta_full        69.54
_diffrn_reflns_theta_max         69.54
_diffrn_reflns_theta_min         4.75
_exptl_absorpt_coefficient_mu    0.846
_exptl_absorpt_correction_T_max  0.9202
_exptl_absorpt_correction_T_min  0.8626
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.392
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             768
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.174
_refine_diff_density_min         -0.227
_refine_diff_density_rms         0.066
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.09(12)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     237
_refine_ls_number_reflns         3193
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0263
_refine_ls_R_factor_gt           0.0258
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0388P)^2^+0.3123P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0665
_refine_ls_wR_factor_ref         0.0670
_reflns_number_gt                3136
_reflns_number_total             3193
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol400362t_si_001.cif
_cod_data_source_block           TRN-6-042-10
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P212121
_cod_database_code               1511895