Highly Efficient Synthesis of Tri- and Tetrasubstituted Conjugated Enynes from Brønsted Acid Catalyzed Alkoxylation of 1-Cyclopropylprop-2-yn-1-ols with Alcohols
Srinivasa Reddy Mothe; Philip Wai Hong Chan; Journal of Organic Chemistry 74 (2009) 5887–5893; doi:10.1021/jo9008244

data_4024750
_publ_section_title
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Highly Efficient Synthesis of Tri- and Tetrasubstituted Conjugated Enynes
from Br\/onsted Acid Catalyzed Alkoxylation of 1-Cyclopropylprop-2-yn-1-ols
with Alcohols
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              5887
_journal_page_last               5893
_journal_paper_doi               10.1021/jo9008244
_journal_volume                  74
_journal_year                    2009
_chemical_formula_moiety         'C21 H18 F N O'
_chemical_formula_sum            'C21 H18 F N O'
_chemical_formula_weight         319.36
_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                 104.041(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.9934(4)
_cell_length_b                   24.0601(12)
_cell_length_c                   9.2979(4)
_cell_measurement_reflns_used    2939
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      23.39
_cell_measurement_theta_min      2.63
_cell_volume                     1734.76(14)
_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      173(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_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  0.0452
_diffrn_reflns_av_sigmaI/netI    0.0458
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            15846
_diffrn_reflns_theta_full        25.05
_diffrn_reflns_theta_max         25.05
_diffrn_reflns_theta_min         1.69
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.9967
_exptl_absorpt_correction_T_min  0.9742
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.223
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             672
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.306
_refine_diff_density_min         -0.318
_refine_diff_density_rms         0.119
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.111
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         3054
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.111
_refine_ls_R_factor_all          0.0989
_refine_ls_R_factor_gt           0.0500
_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^)+(0.0855P)^2^+0.0554P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1237
_refine_ls_wR_factor_ref         0.1689
_reflns_number_gt                1913
_reflns_number_total             3054
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo9008244_si_002.cif
_cod_data_source_block           chan39
_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 
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_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4024750