Synthesis of Enantiomerically Enriched Oxazolinyl[1,2]Oxazetidines
Renzo Luisi; Vito Capriati; Saverio Florio; Eliana Piccolo; Journal of Organic Chemistry 68 (2003) 10187–10190; doi:10.1021/jo035360u

data_4022581
_publ_contact_author
;Prof. Saverio Florio

;
_publ_contact_author_address
;Dipartimento Farmaco-Chimico
Universit\`a degli Studi di Bari
via E. Orabona 4
70125 Bari Ba
Italy
;
_publ_contact_author_email       florio@farmchim.uniba.it
_publ_contact_author_fax         '39 080 5442231'
_publ_contact_author_phone       '39 080 5442749'
_publ_section_title
;
 Synthesis of Enantiomerically Enriched Oxazolinyl[1,2]Oxazetidines
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              10187
_journal_page_last               10190
_journal_paper_doi               10.1021/jo035360u
_journal_volume                  68
_journal_year                    2003
_chemical_formula_sum            'C19 H31 Cl N2 O2'
_chemical_formula_weight         354.91
_chemical_name_systematic
; 
 (4R,3'R,4'S)-2-[2-tert-Butyl-3-(4-chlorophenyl)-4-methyl[1,2]oxazetidin-4-yl]-
4-isopropyl-4,5-dihydrooxazole 
;
_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                90.000(10)
_cell_angle_beta                 90.000(10)
_cell_angle_gamma                90.000(10)
_cell_formula_units_Z            4
_cell_length_a                   6.1870(10)
_cell_length_b                   16.7210(10)
_cell_length_c                   18.7920(10)
_cell_measurement_reflns_used    28053
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.4
_cell_measurement_theta_min      1
_cell_volume                     1944.1(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.931
_diffrn_measured_fraction_theta_max 0.931
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0188
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            2143
_diffrn_reflns_theta_full        26.39
_diffrn_reflns_theta_max         26.39
_diffrn_reflns_theta_min         2.17
_exptl_absorpt_coefficient_mu    0.210
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.213
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             768
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.167
_refine_diff_density_min         -0.203
_refine_diff_density_rms         0.035
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.93(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.121
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         2143
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.121
_refine_ls_R_factor_all          0.0508
_refine_ls_R_factor_gt           0.0457
_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^)+(0.0830P)^2^+0.4347P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1361
_refine_ls_wR_factor_ref         0.1421
_reflns_number_gt                1985
_reflns_number_total             2143
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo035360usi20031031_111553.cif
_cod_data_source_block           shelxl
_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 
;
_cod_database_code               4022581