Synthesis of Substituted Tetralins and Benzosuberans via BF3·OEt2-Mediated Formal (4 + 2) and (5 + 2) Stereocontrolled Cycloaddition of 4-Alkenols with Veratrol.
Chang, Meng-Yang; Cheng, Yu-Chieh; Organic letters 18 (2016) 608–611; doi:10.1021/acs.orglett.5b03696

data_1541921
_publ_section_title
;
 Synthesis of Substituted Tetralins and Benzosuberans via
 BF3&#x00B7;OEt2-Mediated Formal (4 + 2) and (5 + 2) Stereocontrolled
 Cycloaddition of 4-Alkenols with Veratrol.
;
_journal_issue                   3
_journal_name_full               'Organic letters'
_journal_page_first              608
_journal_page_last               611
_journal_paper_doi               10.1021/acs.orglett.5b03696
_journal_volume                  18
_journal_year                    2016
_chemical_formula_sum            'C18 H19 N O5 S'
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_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
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_diffrn_measurement_method       '\f and \w scans'
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_exptl_crystal_colour            Colorless
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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^)+(0.0381P)^2^+0.7741P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_number_gt                2771
_reflns_number_total             3422
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ol5b03696_si_009.cif
_cod_data_source_block           mo_150807lt_0m
_cod_depositor_comments
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The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 

 Adding full bibliography for 1541918--1541929.cif.
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_cod_database_code               1541921
_shelxl_version_number           2014/6
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_shelx_hkl_checksum              49888