Use of Elemental Sulfur or Selenium in a Novel One-Pot Copper-Catalyzed Tandem Cyclization of Functionalized Ynamides Leading to Benzosultams.
Siva Reddy, Alla; Kumara Swamy, K. C.; Organic letters 17 (2015) 2996–2999; doi:10.1021/acs.orglett.5b01287

data_1520450
_publ_section_title
;
 Use of Elemental Sulfur or Selenium in a Novel One-Pot Copper-Catalyzed
 Tandem Cyclization of Functionalized Ynamides Leading to Benzosultams.
;
_journal_issue                   12
_journal_name_full               'Organic letters'
_journal_page_first              2996
_journal_page_last               2999
_journal_paper_doi               10.1021/acs.orglett.5b01287
_journal_volume                  17
_journal_year                    2015
_chemical_formula_sum            'C17 H17 N O2 S2'
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_computing_cell_refinement       'CrysAlisPro, Oxford Diffraction Ltd.'
_computing_data_collection       'CrysAlisPro, Oxford Diffraction Ltd.'
_computing_data_reduction        'CrysAlisPro, Oxford Diffraction Ltd.'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_detector_area_resol_mean 16.3291
_diffrn_measured_fraction_theta_full 'ACTA 50'
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_diffrn_measurement_device_type  'Xcalibur, Eos, Gemini'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
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_diffrn_radiation_type           CuK\a
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_diffrn_reflns_theta_full        'ACTA 50'
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_diffrn_reflns_theta_min         4.65
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count 'not applicable'
_diffrn_standards_interval_time  'not applicable'
_diffrn_standards_number         'not applicable'
_exptl_absorpt_coefficient_mu    3.008
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_exptl_absorpt_correction_T_min  0.56860
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrysAlisPro, Oxford Diffraction Ltd.'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.350
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       blocks
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_refine_ls_number_reflns         3093
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_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0415
_refine_ls_R_factor_gt           0.0391
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0649P)^2^+0.5746P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1054
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_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol5b01287_si_002.cif
_cod_data_source_block           compound-8
_cod_depositor_comments
'Adding full bibliography for 1520446--1520450.cif.'
_cod_original_cell_volume        1630.41(7)
_cod_database_code               1520450