Biomass conversion to high value chemicals: from furfural to chiral hydrofuroins in two steps.
Kabro, Anzhelika; Escudero-Adán, Eduardo C; Grushin, Vladimir V.; van Leeuwen, Piet W. N. M.; Organic letters 14 (2012) 4014–4017; doi:10.1021/ol3018402

data_1508346
_publ_section_title
;
 Biomass conversion to high value chemicals: from furfural to chiral
 hydrofuroins in two steps.
;
_journal_issue                   15
_journal_name_full               'Organic letters'
_journal_page_first              4014
_journal_page_last               4017
_journal_paper_doi               10.1021/ol3018402
_journal_volume                  14
_journal_year                    2012
_chemical_absolute_configuration ad
_chemical_formula_sum            'C12 H14 O4'
_chemical_formula_weight         222.23
_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            4
_cell_length_a                   7.3411(3)
_cell_length_b                   8.1629(3)
_cell_length_c                   18.5968(8)
_cell_measurement_reflns_used    9622
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      62.50
_cell_measurement_theta_min      2.19
_cell_volume                     1114.41(8)
_computing_cell_refinement       'Bruker APEX2 v2011.4-0'
_computing_data_collection       'Bruker APEX2 v2011.4-0'
_computing_data_reduction        'Bruker SAINT V7.60A'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXS-97 (Sheldrick, 2008)'
_computing_structure_solution    Sir2011
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 512
_diffrn_detector_type            '4K CCD area detector APEX II'
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'APEX DUO Kappa 4-axis goniometer'
_diffrn_measurement_method
;
 Fullsphere data collection, phi and omega scans
;
_diffrn_measurement_specimen_support 'magnetic support whith MicroMount'
_diffrn_radiation_monochromator  'Quazar MX Multilayer Optics'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0292
_diffrn_reflns_av_sigmaI/netI    0.0162
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       45
_diffrn_reflns_limit_l_min       -46
_diffrn_reflns_number            120675
_diffrn_reflns_theta_full        62.69
_diffrn_reflns_theta_max         62.69
_diffrn_reflns_theta_min         2.19
_diffrn_source                   'Micorfocus source E025 IuS'
_diffrn_source_current           0.6
_diffrn_source_power             50
_diffrn_source_size              '0.2 mm x 0.2 mm fine focus'
_diffrn_source_type              'Bruker APEX DUO'
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  0.9901
_exptl_absorpt_correction_T_min  0.9613
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
; 
 SADABS Version 2008/1 Bruker-Nonius
 Blessing, Acta Cryst. (1995) A51 33-38
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.325
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             472
_exptl_crystal_size_max          0.949
_exptl_crystal_size_mid          0.794
_exptl_crystal_size_min          0.306
_refine_diff_density_max         0.512
_refine_diff_density_min         -0.292
_refine_diff_density_rms         0.079
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.05(17)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.137
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     201
_refine_ls_number_reflns         18167
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.137
_refine_ls_R_factor_all          0.0368
_refine_ls_R_factor_gt           0.0330
_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^)+(0.0556P)^2^+0.0111P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0886
_refine_ls_wR_factor_ref         0.0916
_reflns_number_gt                16770
_reflns_number_total             18167
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol3018402_si_002.cif
_cod_data_source_block           mo_kaa56_0m
_cod_depositor_comments
;
The following automatic conversions were performed:
'_diffrn_measurement_specimen_suppport' tag replaced with
'_diffrn_measurement_specimen_support'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z saulius 

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      P2(1)2(1)2(1)
_cod_database_code               1508346