Intramolecular Diels-Alder Reactions of Tethered Enoate Substituted Furans Induced by Dialkylaluminum Chloride.
Riedel, Sibylle; Maichle-Mössmer, Cäcilia; Maier, Martin E.; The Journal of organic chemistry 82 (2017) 12798–12805; doi:10.1021/acs.joc.7b02117

data_4033139
_publ_section_title
;
 Intramolecular Diels-Alder Reactions of Tethered Enoate Substituted
 Furans Induced by Dialkylaluminum Chloride.
;
_journal_issue                   23
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              12798
_journal_page_last               12805
_journal_paper_doi               10.1021/acs.joc.7b02117
_journal_volume                  82
_journal_year                    2017
_chemical_formula_sum            'C14 H22 O3'
_chemical_formula_weight         238.31
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                107.677(8)
_cell_angle_beta                 90.937(5)
_cell_angle_gamma                100.663(7)
_cell_formula_units_Z            4
_cell_length_a                   7.142(2)
_cell_length_b                   11.870(4)
_cell_length_c                   16.292(6)
_cell_measurement_reflns_used    569
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      29.93
_cell_measurement_theta_min      1.325
_cell_volume                     1289.3(7)
_computing_cell_refinement       'SAINT V8.37A (Bruker AXS Inc., 2015)'
_computing_data_collection       'Bruker Apex3'
_computing_data_reduction        'SAINT V8.37A (Bruker AXS Inc., 2015)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'XT, VERSION 2014/5,SHELXS-13 (Sheldrick 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX II DUO'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0469
_diffrn_reflns_av_unetI/netI     0.0275
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            46008
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.102
_diffrn_reflns_theta_min         1.838
_diffrn_source                   'ImuS-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  0.7458
_exptl_absorpt_correction_T_min  0.7064
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.228
_exptl_crystal_description       plate
_exptl_crystal_F_000             520
_exptl_crystal_size_max          0.323
_exptl_crystal_size_mid          0.144
_exptl_crystal_size_min          0.066
_refine_diff_density_max         0.289
_refine_diff_density_min         -0.249
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     318
_refine_ls_number_reflns         5679
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.0509
_refine_ls_R_factor_gt           0.0378
_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^)+(0.0401P)^2^+0.4570P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0879
_refine_ls_wR_factor_ref         0.0957
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4574
_reflns_number_total             5679
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo7b02117_si_002.cif
_cod_data_source_block           mo_sr152NP_0m_naphthalene_23_exo
_cod_depositor_comments
'Adding full bibliography for 4033135--4033140.cif.'
_cod_original_cell_volume        1289.4(8)
_cod_database_code               4033139
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.973
_shelx_estimated_absorpt_t_max   0.994
_shelx_res_checksum              5179
_shelx_hkl_checksum              9685