Synthesis of amido-spiro[2.2]pentanes via Simmons–Smith cyclopropanation of allenamides
Lu, Ting; Hayashi, Ryuji; Hsung, Richard P.; DeKorver, Kyle A.; Lohse, Andrew G.; Song, Zhenlei; Tang, Yu; Organic & Biomolecular Chemistry 7 (2009) 3331–3337; doi:10.1039/b908205k

data_7150717
_publ_section_title
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 Synthesis of amido-spiro[2.2]pentanes via Simmons--Smith
 cyclopropanation of allenamides
;
_journal_issue                   16
_journal_name_full               'Organic &amp; Biomolecular Chemistry'
_journal_page_first              3331
_journal_page_last               3337
_journal_paper_doi               10.1039/b908205k
_journal_volume                  7
_journal_year                    2009
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C18 H23 N O2'
_chemical_formula_sum            'C18 H23 N O2'
_chemical_formula_weight         285.37
_chemical_name_common            09058a
_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                 96.906(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.2307(11)
_cell_length_b                   16.094(3)
_cell_length_c                   8.0544(15)
_cell_measurement_reflns_used    2971
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      26.38
_cell_measurement_theta_min      2.53
_cell_volume                     801.8(3)
_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  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0328
_diffrn_reflns_av_sigmaI/netI    0.0276
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            6605
_diffrn_reflns_theta_full        26.41
_diffrn_reflns_theta_max         26.41
_diffrn_reflns_theta_min         2.53
_exptl_absorpt_coefficient_mu    0.076
_exptl_absorpt_correction_T_max  0.9812
_exptl_absorpt_correction_T_min  0.9738
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2009)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.182
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             308
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.139
_refine_diff_density_min         -0.153
_refine_diff_density_rms         0.031
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.1(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         1704
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0425
_refine_ls_R_factor_gt           0.0342
_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^)+(0.0428P)^2^+0.1053P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0811
_refine_ls_wR_factor_ref         0.0861
_reflns_number_gt                1515
_reflns_number_total             1704
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b908205k.txt
_cod_data_source_block           09058a
_cod_depositor_comments
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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 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan' changed
to 'multi-scan' 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_original_sg_symbol_H-M      P2(1)
_cod_database_code               7150717