Reactivity of epoxy-ynamides with metal halides: nucleophile (Br/Cl/OH)-assisted tandem intramolecular 5-exo-dig or 6-endo-dig cyclisation and AgF2-promoted oxidation
Anitha, Mandala; Shankar, Mallepalli; Kumara Swamy, K. C.; Organic Chemistry Frontiers 6 (2019) 1133–; doi:10.1039/C9QO00027E

data_1554702
_publ_section_title
;
 Reactivity of epoxy-ynamides with metal halides: nucleophile
 (Br/Cl/OH)-assisted tandem intramolecular 5-exo-dig or 6-endo-dig
 cyclisation and AgF2-promoted oxidation
;
_journal_issue                   8
_journal_name_full               'Organic Chemistry Frontiers'
_journal_page_first              1133
_journal_paper_doi               10.1039/C9QO00027E
_journal_volume                  6
_journal_year                    2019
_chemical_formula_sum            'C21 H25 N O4 S'
_chemical_formula_weight         387.48
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_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
_audit_update_record
;
2018-12-15 deposited with the CCDC.	2019-02-21 downloaded from the CCDC.
;
_cell_angle_alpha                95.131(11)
_cell_angle_beta                 99.760(11)
_cell_angle_gamma                103.107(11)
_cell_formula_units_Z            4
_cell_length_a                   10.994(13)
_cell_length_b                   12.052(15)
_cell_length_c                   16.90(2)
_cell_measurement_reflns_used    1179
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      19.45
_cell_measurement_theta_min      2.47
_cell_volume                     2130(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 'ACTA 50'
_diffrn_measured_fraction_theta_max 0.782
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \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  0.0342
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_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            8145
_diffrn_reflns_theta_full        'ACTA 50'
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.23
_exptl_absorpt_coefficient_mu    0.176
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.208
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             824
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent'
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.507
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_refine_ls_extinction_method     none
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_refine_ls_number_reflns         5863
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_refine_ls_shift/su_max          0.189
_refine_ls_shift/su_mean         0.014
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1824P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2554
_refine_ls_wR_factor_ref         0.3338
_reflns_number_gt                2184
_reflns_number_total             5863
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c9qo00027e2.cif
_cod_data_source_block           compound21
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Triclinic' was changed to
'triclinic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/RSC/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1554702