Stereoselective synthesis of 2,4,5-trisubstituted piperidines by carbonyl ene and Prins cyclisations.
Cariou, Claire A. M.; Snaith, John S.; Organic & biomolecular chemistry 4 (2006) 51–53; doi:10.1039/b515547a

data_7150407
_publ_section_title
;
 Stereoselective synthesis of 2,4,5-trisubstituted piperidines by
 carbonyl ene and Prins cyclisations.
;
_journal_issue                   1
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              51
_journal_page_last               53
_journal_paper_doi               10.1039/b515547a
_journal_volume                  4
_journal_year                    2006
_chemical_formula_sum            'C16 H23 N O3 S'
_chemical_formula_weight         309.41
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 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                 112.1780(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   22.4722(3)
_cell_length_b                   7.87270(10)
_cell_length_c                   19.9610(2)
_cell_measurement_temperature    296(2)
_cell_volume                     3270.17(7)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.937
_diffrn_measured_fraction_theta_max 0.937
_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  0.0250
_diffrn_reflns_av_sigmaI/netI    0.0200
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            10104
_diffrn_reflns_theta_full        70.45
_diffrn_reflns_theta_max         70.45
_diffrn_reflns_theta_min         4.25
_exptl_absorpt_coefficient_mu    1.837
_exptl_absorpt_correction_T_max  0.8978
_exptl_absorpt_correction_T_min  0.5270
_exptl_crystal_density_diffrn    1.257
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1328
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.338
_refine_diff_density_min         -0.300
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.090
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     194
_refine_ls_number_reflns         2943
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.090
_refine_ls_R_factor_all          0.0423
_refine_ls_R_factor_gt           0.0392
_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^)+(0.0599P)^2^+2.1762P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1123
_refine_ls_wR_factor_ref         0.1150
_reflns_number_gt                2689
_reflns_number_total             2943
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b515547a.txt
_cod_data_source_block           clc76b
_cod_depositor_comments
;
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.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7150407