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_4021463
_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         'C12 H20 O5'
_chemical_formula_sum            'C12 H20 O5'
_chemical_formula_weight         244.28
_chemical_name_systematic
;
 (4R*, 5R*, 7S*)-4-ethyl-4,7-dihidroxy-7-
hydroxymethyl-2-oxa-spiro[4.5]decan-1-one
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 106.5350(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.4080(3)
_cell_length_b                   10.1670(3)
_cell_length_c                   13.3930(4)
_cell_measurement_reflns_used    2802
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.49
_cell_measurement_theta_min      2.26
_cell_volume                     1228.08(6)
_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 0.995
_diffrn_measured_fraction_theta_max 0.995
_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    0.0443
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            2802
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         2.26
_exptl_absorpt_coefficient_mu    0.102
_exptl_absorpt_correction_T_max  0.9949
_exptl_absorpt_correction_T_min  0.9508
_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             528
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.351
_refine_diff_density_min         -0.304
_refine_diff_density_rms         0.110
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         2802
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.0844
_refine_ls_R_factor_gt           0.0579
_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^)+(0.0956P)^2^+0.4717P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1540
_refine_ls_wR_factor_ref         0.1862
_reflns_number_gt                2160
_reflns_number_total             2802
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo052237psi20051102_104042_8.cif
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4021463