Conia-ene annulation of the α-cyano β-TMS-capped alkynyl cycloalkanone system and its synthetic application
Chin, Chih-Lung; Liao, Cheng-Feng; Liu, Hsing-Jang; Wong, Ying-Chieh; Hsieh, Ming-Tsang; Amancha, Prashanth K.; Chang, Chun-Ping; Shia, Kak-Shan; Organic & Biomolecular Chemistry 9 (2011) 4778–; doi:10.1039/c1ob05591g

data_7151896
_publ_section_title
;
 Conia-ene annulation of the \a-cyano \b-TMS-capped alkynyl
 cycloalkanone system and its synthetic application
;
_journal_issue                   13
_journal_name_full               'Organic &amp; Biomolecular Chemistry'
_journal_page_first              4778
_journal_paper_doi               10.1039/c1ob05591g
_journal_volume                  9
_journal_year                    2011
_chemical_formula_sum            'C16 H25 N O Si'
_chemical_formula_weight         275.46
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 106.442(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.914(4)
_cell_length_b                   11.740(4)
_cell_length_c                   12.726(4)
_cell_measurement_reflns_used    1528
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      25
_cell_measurement_theta_min      2.5
_cell_volume                     1707.2(10)
_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  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0866
_diffrn_reflns_av_sigmaI/netI    0.1064
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            19795
_diffrn_reflns_theta_full        28.43
_diffrn_reflns_theta_max         28.43
_diffrn_reflns_theta_min         1.78
_exptl_absorpt_coefficient_mu    0.132
_exptl_absorpt_correction_T_max  0.94867
_exptl_absorpt_correction_T_min  0.75487
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.072
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             600
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.258
_refine_diff_density_min         -0.240
_refine_diff_density_rms         0.042
_refine_ls_extinction_coef       0.0000(11)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.802
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     194
_refine_ls_number_reflns         4247
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.802
_refine_ls_R_factor_all          0.1534
_refine_ls_R_factor_gt           0.0567
_refine_ls_shift/su_max          2.842
_refine_ls_shift/su_mean         0.038
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0724P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1344
_refine_ls_wR_factor_ref         0.1603
_reflns_number_gt                1586
_reflns_number_total             4247
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1ob05591g.txt
_cod_data_source_block           05nv38m
_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.

'_exptl_absorpt_correction_type' value 'Empirical' changed to
'empirical' 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 1555 2011-01-17 13:19:09Z saulius 
;
_cod_original_cell_volume        1707.1(9)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7151896