Synthesis and Structure of Hydroxyl Acids of General Structure 7,7-Alkenyl/alkynyl-5-hydroxymethyl-6-oxabicyclo[3.2.1]octane- 1-carboxylic Acid
Natalia Pérez-Hernández; Martín Febles; Cirilo Pérez; Matías L. Rodríguez; Concepción Foces-Foces; Julio D. Martín; Journal of Organic Chemistry 71 (2006) 1139–1151; doi:10.1021/jo052237p

data_4021461
_publ_section_title
;
 Synthesis and Structure of Hydroxyl Acids of General Structure
 7,7-Alkenyl/alkynyl-5-hydroxymethyl-6-oxabicyclo[3.2.1]octane-
 1-carboxylic Acid
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1139
_journal_page_last               1151
_journal_paper_doi               10.1021/jo052237p
_journal_volume                  71
_journal_year                    2006
_chemical_formula_moiety         'C20 H25 Cl O6'
_chemical_formula_sum            'C20 H25 Cl O6'
_chemical_formula_weight         396.85
_chemical_name_systematic
;
 (1R*, 5R*, 7S*)-7-(m-chlorobenzoyloxymethyl)-7-ethyl-5-
hydroxymethyl-6-oxabicyclo[3.2.1]octane-1-carboxylic acid
 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                89.130(5)
_cell_angle_beta                 89.221(5)
_cell_angle_gamma                80.184(6)
_cell_formula_units_Z            2
_cell_length_a                   7.6390(4)
_cell_length_b                   8.0350(9)
_cell_length_c                   16.4990(16)
_cell_measurement_reflns_used    4412
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      2.47
_cell_volume                     997.70(16)
_computing_cell_refinement
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 2000)'
_computing_data_reduction
'HKL Denzo and Scalepak (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXL-97, WinGX (Farrugia, 1999) and PLATON'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.965
_diffrn_measured_fraction_theta_max 0.965
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       '\f and \w'
_diffrn_radiation_monochromator  'horizontally mounted graphite crystal'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0415
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            4412
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.47
_exptl_absorpt_coefficient_mu    0.224
_exptl_absorpt_correction_T_max  0.9889
_exptl_absorpt_correction_T_min  0.9058
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.321
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             420
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.457
_refine_diff_density_min         -0.300
_refine_diff_density_rms         0.074
_refine_ls_extinction_coef       0.253(19)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.083
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     246
_refine_ls_number_reflns         4412
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.083
_refine_ls_R_factor_all          0.0954
_refine_ls_R_factor_gt           0.0784
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0610P)^2^+1.0064P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1768
_refine_ls_wR_factor_ref         0.1956
_reflns_number_gt                3580
_reflns_number_total             4412
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo052237psi20051102_104042_6.cif
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_database_code               4021461