Palladium-catalyzed cycloisomerization and aerobic oxidative cycloisomerization of homoallenyl amides: a facile and divergent approach to 2-aminofurans.
Cheng, Cungui; Liu, Shuiyou; Zhu, Gangguo; Organic letters 17 (2015) 1581–1584; doi:10.1021/acs.orglett.5b00464

data_1518994
_publ_section_title
;
 Palladium-catalyzed cycloisomerization and aerobic oxidative
 cycloisomerization of homoallenyl amides: a facile and divergent approach
 to 2-aminofurans.
;
_journal_issue                   6
_journal_name_full               'Organic letters'
_journal_page_first              1581
_journal_page_last               1584
_journal_paper_doi               10.1021/acs.orglett.5b00464
_journal_volume                  17
_journal_year                    2015
_chemical_formula_sum            'C14 H17 N O3 S'
_chemical_formula_weight         279.35
_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                 98.230(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   25.7457(10)
_cell_length_b                   5.8011(2)
_cell_length_c                   19.0494(7)
_cell_measurement_reflns_used    14280
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.538
_cell_measurement_theta_min      2.861
_cell_volume                     2815.79(18)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_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      296(2)
_diffrn_detector_area_resol_mean NONE
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '\w 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  0.0706
_diffrn_reflns_av_sigmaI/netI    0.0296
_diffrn_reflns_limit_h_max       33
_diffrn_reflns_limit_h_min       -33
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            43489
_diffrn_reflns_theta_full        27.54
_diffrn_reflns_theta_max         27.54
_diffrn_reflns_theta_min         2.16
_diffrn_standards_interval_count NONE
_diffrn_standards_interval_time  NONE
_diffrn_standards_number         NONE
_exptl_absorpt_coefficient_mu    0.233
_exptl_absorpt_correction_T_max  .954
_exptl_absorpt_correction_T_min  .946
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            COLORLESS
_exptl_crystal_density_diffrn    1.318
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             1184
_exptl_crystal_size_max          .3
_exptl_crystal_size_mid          .2
_exptl_crystal_size_min          .2
_refine_diff_density_max         0.331
_refine_diff_density_min         -0.514
_refine_diff_density_rms         0.063
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.075
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     172
_refine_ls_number_reflns         3244
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.075
_refine_ls_R_factor_all          0.0672
_refine_ls_R_factor_gt           0.0538
_refine_ls_shift/su_max          0.019
_refine_ls_shift/su_mean         0.004
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0618P)^2^+4.3176P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1309
_refine_ls_wR_factor_ref         0.1393
_reflns_number_gt                2696
_reflns_number_total             3244
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol5b00464_si_002.cif
_cod_data_source_block           lsy02
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

'_exptl_absorpt_correction_type' value 'MULTI-SCAN' changed to
'multi-scan' according to
/usr/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

'_refine_ls_hydrogen_treatment' value 'CONSTR' changed to 'constr'
according to
/usr/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               1518994