The Staudinger reaction with 2-imino-1,3-thiaselenanes toward the synthesis of C4 spiro-β-lactams.
Toyoda, Yosuke; Ninomiya, Masayuki; Ebihara, Masahiro; Koketsu, Mamoru; Organic & biomolecular chemistry 11 (2013) 2652–2659; doi:10.1039/c3ob00073g

data_7152847
_publ_section_title
;
 The Staudinger reaction with 2-imino-1,3-thiaselenanes toward the
 synthesis of C4 spiro-\b-lactams.
;
_journal_issue                   16
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              2652
_journal_page_last               2659
_journal_paper_doi               10.1039/c3ob00073g
_journal_volume                  11
_journal_year                    2013
_chemical_formula_moiety         'C13 H15 N O2 S Se'
_chemical_formula_sum            'C13 H15 N O2 S Se'
_chemical_formula_weight         328.28
_chemical_melting_point          115.5(5)
_chemical_name_systematic
;
2-Methoxy-N-phenyl-2-(1,3-thiaselenan-2-ylidene)acetamide
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 91.933(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.283(5)
_cell_length_b                   5.835(2)
_cell_length_c                   19.052(8)
_cell_measurement_reflns_used    4020
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.4736
_cell_measurement_theta_min      3.2107
_cell_volume                     1364.7(9)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_molecular_graphics    'Yadokari-XG 2009 (Wakita Nemoto et al.,2009)'
_computing_publication_material
;
Yadokari-XG 2009 (Wakita,Nemoto et al., 2009)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution
;
SIR97
;
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 14.6306
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Rigaku AFC7R Mercury CCD'
_diffrn_measurement_method       dtprofit.ref
_diffrn_radiation_monochromator  'Graphite Monochromator'
_diffrn_radiation_source         'Rotating Anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0887
_diffrn_reflns_av_sigmaI/netI    0.1459
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            10404
_diffrn_reflns_theta_full        27.40
_diffrn_reflns_theta_max         27.42
_diffrn_reflns_theta_min         3.32
_exptl_absorpt_coefficient_mu    2.901
_exptl_absorpt_correction_T_max  0.4303
_exptl_absorpt_correction_T_min  0.3402
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'NUMABS (Higashi, 1999)'
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.600
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             664
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.45
_refine_diff_density_max         0.780
_refine_diff_density_min         -1.408
_refine_diff_density_rms         0.156
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.888
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     165
_refine_ls_number_reflns         3084
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.888
_refine_ls_R_factor_all          0.1271
_refine_ls_R_factor_gt           0.0697
_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^)+(0.1472P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1822
_refine_ls_wR_factor_ref         0.2658
_reflns_number_gt                1184
_reflns_number_total             3084
_reflns_threshold_expression     ' I>2\s(I)'
_cod_data_source_file            c3ob00073g.txt
_cod_data_source_block           9a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '115-116' was changed to '115.5(5)' -
the average value was taken and precision was
estimated.

'_exptl_absorpt_correction_type' value 'Numerical'
changed to 'numerical' 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      'P 21/n'
_cod_database_code               7152847