Intramolecular annulation of aromatic rings with N-sulfonyl 1,2,3-triazoles: divergent synthesis of 3-methylene-2,3-dihydrobenzofurans and 3-methylene-2,3-dihydroindoles
Xiang-Ying Tang; Yong-Sheng Zhang; Lv He; Yin Wei; Min Shi; Chem.Commun. 51 (2015) 133–; doi:10.1039/C4cc08343A

data_7116164
_publ_section_title
;
 Intramolecular annulation of aromatic rings with N-sulfonyl
 1,2,3-triazoles: divergent synthesis of
 3-methylene-2,3-dihydrobenzofurans and 3-methylene-2,3-dihydroindoles
;
_journal_name_full               Chem.Commun.
_journal_page_first              133
_journal_paper_doi               10.1039/C4cc08343A
_journal_volume                  51
_journal_year                    2015
_chemical_formula_sum            'C30 H23 N3 O8 S'
_chemical_formula_weight         585.57
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
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_cell_length_b                   15.055(3)
_cell_length_c                   15.927(3)
_cell_measurement_reflns_used    2766
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      50.991
_cell_measurement_theta_min      4.674
_cell_volume                     2721.0(9)
_computing_cell_refinement       'Bruker SMART'
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_computing_molecular_graphics    'Bruker SHELXTL'
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_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_type           MoK\a
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_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.997
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_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -19
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_diffrn_reflns_theta_max         26.000
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_exptl_absorpt_correction_T_min  0.6307
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
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_refine_ls_R_factor_all          0.0938
_refine_ls_R_factor_gt           0.0624
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0781P)^2^+0.4054P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_threshold_expression     'I > 2\s(I)'
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