Synthesis of 2-Azaspiro[4.6]undec-7-enes from N-Tosyl-N-(3-arylpropargyl)-Tethered 3-Methylcyclohex-2-en-1-ols
Ming-Chang P. Yeh; Chia-Jung Liang; Chern-Wei Fan; Wei-Hang Chiu; Jun-Yuan Lo; Journal of Organic Chemistry 77 (2012) 9707–9717; doi:10.1021/jo301764g

data_4027670
_publ_section_title
;
 Synthesis of 2-Azaspiro[4.6]undec-7-enes from
 N-Tosyl-N-(3-arylpropargyl)-Tethered 3-Methylcyclohex-2-en-1-ols
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              9707
_journal_page_last               9717
_journal_paper_doi               10.1021/jo301764g
_journal_volume                  77
_journal_year                    2012
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C25 H28 I N O3 S'
_chemical_formula_sum            'C25 H28 I N O3 S'
_chemical_formula_weight         549.44
_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                 110.299(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   12.813(4)
_cell_length_b                   6.246(2)
_cell_length_c                   15.497(5)
_cell_measurement_reflns_used    0
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      0
_cell_measurement_theta_min      0
_cell_volume                     1163.2(6)
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.0572
_diffrn_reflns_av_sigmaI/netI    0.0757
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -4
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            7149
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         1.69
_exptl_absorpt_coefficient_mu    1.493
_exptl_absorpt_correction_T_max  0.9427
_exptl_absorpt_correction_T_min  0.4579
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.569
_exptl_crystal_description       prism
_exptl_crystal_F_000             556
_exptl_crystal_size_max          0.62
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.806
_refine_diff_density_min         -1.078
_refine_diff_density_rms         0.124
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.01(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.024
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     280
_refine_ls_number_reflns         3104
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0594
_refine_ls_R_factor_gt           0.0472
_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^)+(0.0680P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1122
_refine_ls_wR_factor_ref         0.1209
_reflns_number_gt                2666
_reflns_number_total             3104
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo301764g_si_013.cif
_cod_data_source_block           a12595
_cod_original_cell_volume        1163.2(7)
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4027670