Room Temperature ICl-Induced Dehydration/Iodination of 1-Acyl-5-hydroxy-4,5-dihydro-1H-pyrazoles. A Selective Route to Substituted 1-Acyl-4-iodo-1H-pyrazoles
Jesse P. Waldo; Saurabh Mehta; Richard C. Larock; Journal of Organic Chemistry 73 (2008) 6666–6670; doi:10.1021/jo800789p

data_4023628
_publ_section_title
;
 Room Temperature ICl-Induced Dehydration/Iodination of
 1-Acyl-5-hydroxy-4,5-dihydro-1H-pyrazoles.
 A Selective Route to Substituted 1-Acyl-4-iodo-1H-pyrazoles
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              6666
_journal_page_last               6670
_journal_paper_doi               10.1021/jo800789p
_journal_volume                  73
_journal_year                    2008
_chemical_formula_sum            'C17 H15 Cl N2 O2'
_chemical_formula_weight         314.76
_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                 98.5170(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   28.8123(17)
_cell_length_b                   5.8366(4)
_cell_length_c                   36.791(2)
_cell_measurement_reflns_used    6774
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.51
_cell_measurement_theta_min      2.83
_cell_volume                     6118.7(7)
_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      100(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         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0342
_diffrn_reflns_av_sigmaI/netI    0.0385
_diffrn_reflns_limit_h_max       38
_diffrn_reflns_limit_h_min       -38
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       50
_diffrn_reflns_limit_l_min       -47
_diffrn_reflns_number            23646
_diffrn_reflns_theta_full        29.00
_diffrn_reflns_theta_max         29.00
_diffrn_reflns_theta_min         1.12
_exptl_absorpt_coefficient_mu    0.258
_exptl_absorpt_correction_T_max  0.9526
_exptl_absorpt_correction_T_min  0.9220
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker, SADABS'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.367
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2624
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.19
_refine_diff_density_max         0.492
_refine_diff_density_min         -0.417
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     407
_refine_ls_number_reflns         8073
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0627
_refine_ls_R_factor_gt           0.0463
_refine_ls_shift/su_max          0.002
_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^+8.8033P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1036
_refine_ls_wR_factor_ref         0.1131
_reflns_number_gt                6381
_reflns_number_total             8073
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo800789p-file004.cif
_cod_data_source_block           lar14
_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      'C 2/c'
_cod_database_code               4023628