Chiral Brønsted acid catalyzed enantioselective addition of alpha-isocyanoacetamides to aldehydes.
Zeng, Xiaofei; Ye, Kehan; Lu, Min; Chua, Pei Juan; Tan, Bin; Zhong, Guofu; Organic letters 12 (2010) 2414–2417; doi:10.1021/ol1007789

data_1502993
_publ_section_title
;
 Chiral Br\/onsted acid catalyzed enantioselective addition of
 alpha-isocyanoacetamides to aldehydes.
;
_journal_issue                   10
_journal_name_full               'Organic letters'
_journal_page_first              2414
_journal_page_last               2417
_journal_paper_doi               10.1021/ol1007789
_journal_volume                  12
_journal_year                    2010
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C17 H22 N2 O3'
_chemical_formula_sum            'C17 H22 N2 O3'
_chemical_formula_weight         302.37
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 101.950(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.2690(10)
_cell_length_b                   5.8773(7)
_cell_length_c                   15.1007(18)
_cell_measurement_reflns_used    5932
_cell_measurement_temperature    103(2)
_cell_measurement_theta_max      32.90
_cell_measurement_theta_min      2.25
_cell_volume                     804.81(16)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      103(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0300
_diffrn_reflns_av_sigmaI/netI    0.0306
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            14684
_diffrn_reflns_theta_full        34.30
_diffrn_reflns_theta_max         34.30
_diffrn_reflns_theta_min         2.76
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_T_max  0.9949
_exptl_absorpt_correction_T_min  0.9664
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.248
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             324
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.445
_refine_diff_density_min         -0.354
_refine_diff_density_rms         0.057
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.091
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     240
_refine_ls_number_reflns         3606
_refine_ls_number_restraints     7
_refine_ls_restrained_S_all      1.091
_refine_ls_R_factor_all          0.0568
_refine_ls_R_factor_gt           0.0421
_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^)+(0.0816P)^2^+0.0194P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1094
_refine_ls_wR_factor_ref         0.1264
_reflns_number_gt                3045
_reflns_number_total             3606
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol1007789_si_002.cif
_cod_data_source_block           zgf70s
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               1502993