Stereoselective Synthesis of Quaternary Center Bearing Azetines and Their β-Amino Acid Derivatives
Christopher J. MacNevin; Rhonda L. Moore; Dennis C. Liotta; Journal of Organic Chemistry 73 (2008) 1264–1269; doi:10.1021/jo7018202

data_4023255
_publ_section_title
;
 Stereoselective Synthesis of Quaternary Center Bearing Azetines
 and Their \b-Amino Acid Derivatives
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1264
_journal_page_last               1269
_journal_paper_doi               10.1021/jo7018202
_journal_volume                  73
_journal_year                    2008
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C22 H25 N3 O'
_chemical_formula_sum            'C22 H25 N3 O'
_chemical_formula_weight         347.45
_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                   5.41700(10)
_cell_length_b                   18.3781(5)
_cell_length_c                   19.1656(5)
_cell_measurement_reflns_used    6140
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      66.16
_cell_measurement_theta_min      8.45
_cell_volume                     1908.02(8)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.921
_diffrn_measured_fraction_theta_max 0.921
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0189
_diffrn_reflns_av_sigmaI/netI    0.0184
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            8089
_diffrn_reflns_theta_full        66.16
_diffrn_reflns_theta_max         66.16
_diffrn_reflns_theta_min         8.45
_exptl_absorpt_coefficient_mu    0.591
_exptl_absorpt_correction_T_max  0.9114
_exptl_absorpt_correction_T_min  0.7488
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2.10, Sheldrick 2003'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.210
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             744
_exptl_crystal_size_max          0.52
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.117
_refine_diff_density_min         -0.175
_refine_diff_density_rms         0.038
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.0(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.089
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     238
_refine_ls_number_reflns         2879
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.089
_refine_ls_R_factor_all          0.0296
_refine_ls_R_factor_gt           0.0288
_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^)+(0.0400P)^2^+0.2500P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0700
_refine_ls_wR_factor_ref         0.0706
_reflns_number_gt                2807
_reflns_number_total             2879
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo7018202-File002.cif
_cod_data_source_block           18a_trans
_cod_depositor_comments
;
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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
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_cod_database_code               4023255