Rhodium N-Heterocyclic Carbene-Catalyzed [4 + 2] and [5 + 2] Cycloaddition Reactions
Sang Ick Lee; Se Yeoun Park; Ji Hoon Park; Il Gu Jung; Soo Young Choi; Young Keun Chung; Bun Yeoul Lee; Journal of Organic Chemistry 71 (2006) 91–96; doi:10.1021/jo051685u

data_4021347
_publ_section_title
;
 Rhodium N-Heterocyclic Carbene-Catalyzed [4 + 2] and
 [5 + 2] Cycloaddition Reactions
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              91
_journal_page_last               96
_journal_paper_doi               10.1021/jo051685u
_journal_volume                  71
_journal_year                    2006
_chemical_formula_sum            'C25 H17 N O2 S'
_chemical_formula_weight         395.48
_chemical_name_systematic
; N-(4,5-Dimethyl-cyclohexa-1,4-dienylmethyl)-4-methyl-
  N-(3-phenyl-prop-2-ynyl)-benzenesulfonamide 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                93.023(2)
_cell_angle_beta                 111.262(2)
_cell_angle_gamma                98.409(2)
_cell_formula_units_Z            4
_cell_length_a                   9.4290(4)
_cell_length_b                   11.2800(4)
_cell_length_c                   11.7580(5)
_cell_measurement_temperature    293(2)
_cell_volume                     1145.30(8)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    ORTEP32
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       '95mm CCD camera on \k-goniostat'
_diffrn_radiation_monochromator  'horizonally mounted graphite crystal'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0223
_diffrn_reflns_av_sigmaI/netI    0.0320
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            7932
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         1.84
_exptl_absorpt_coefficient_mu    0.161
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.176
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cubic
_exptl_crystal_F_000             432
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.397
_refine_diff_density_min         -0.583
_refine_diff_density_rms         0.117
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.086
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     265
_refine_ls_number_reflns         5188
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.086
_refine_ls_R_factor_all          0.0714
_refine_ls_R_factor_gt           0.0572
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1057P)^2^+0.2127P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1639
_refine_ls_wR_factor_ref         0.1810
_reflns_number_gt                4230
_reflns_number_total             5188
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo051685usi20050810_012127.cif
_cod_database_code               4021347