Divergent reaction pathways in gold-catalyzed cycloisomerization of 1,5-enynes containing a cyclopropane ring: dramatic ortho substituent and temperature effects
Chen, Gen-Qiang; Fang, Wei; Wei, Yin; Tang, Xiang-Ying; Shi, Min; Chem. Sci. 7 (2016) 4318–; doi:10.1039/C6SC00058D

data_1542732
_publ_section_title
;
 Divergent reaction pathways in gold-catalyzed cycloisomerization of
 1,5-enynes containing a cyclopropane ring: dramatic ortho substituent and
 temperature effects
;
_journal_issue                   7
_journal_name_full               'Chem. Sci.'
_journal_page_first              4318
_journal_paper_doi               10.1039/C6SC00058D
_journal_volume                  7
_journal_year                    2016
_chemical_formula_moiety         'C19 H18 O'
_chemical_formula_sum            'C19 H18 O'
_chemical_formula_weight         262.33
_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
_atom_sites_solution_primary     direct
_audit_creation_date             2015-02-10
_audit_creation_method
;
Olex2 1.2
(compiled 2014.07.22 svn.r2960 for OlexSys, GUI svn.r4862)
;
_audit_update_record
;
2015-02-10 deposited with the CCDC.
2016-03-04 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 98.064(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.9373(12)
_cell_length_b                   5.8477(7)
_cell_length_c                   23.768(3)
_cell_measurement_reflns_used    4863
_cell_measurement_temperature    130
_cell_measurement_theta_max      30.60
_cell_measurement_theta_min      2.35
_cell_volume                     1367.5(3)
_computing_cell_refinement       'SAINT v7.68A (Bruker, 2009)'
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      130
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0241
_diffrn_reflns_av_unetI/netI     0.0257
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            13016
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.607
_diffrn_reflns_theta_min         1.731
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.6377
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.0848 before and 0.0388 after correction.
The Ratio of minimum to maximum transmission is 0.8547.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.274
_exptl_crystal_description       block
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.378
_refine_diff_density_min         -0.254
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     182
_refine_ls_number_reflns         4198
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0618
_refine_ls_R_factor_gt           0.0498
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0811P)^2^+0.3753P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1357
_refine_ls_wR_factor_ref         0.1454
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3404
_reflns_number_total             4198
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6sc00058d2.cif
_cod_data_source_block           mo_dm15136_0m
_cod_depositor_comments
'Adding full bibliography for 1542730--1542732.cif.'
_cod_database_code               1542732
_shelxl_version_number           2014-3
_shelx_estimated_absorpt_t_max   0.985
_shelx_estimated_absorpt_t_min   0.981
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C3(H3)
2.b Secondary CH2 refined with riding coordinates:
 C1(H1A,H1B), C2(H2A,H2B), C6(H6A,H6B)
2.c Aromatic/amide H refined with riding coordinates:
 C4(H4), C5(H5), C10(H10), C12(H12), C13(H13), C15(H15), C17(H17), C18(H18)
2.d Idealised Me refined as rotating group:
 C19(H19A,H19B,H19C)
;
_shelx_res_checksum              76909
_olex2_submission_special_instructions 'No special instructions were received'