Synthetic studies toward the kempane diterpenes. Dielsâ€“Alder additions to bicyclic dienes
Liu, Chunjian; Bao, Guanglin; Burnell, D. Jean; Journal of the Chemical Society, Perkin Transactions 1  (2001) 2644–; doi:10.1039/b104924k

data_7216899
_publ_section_title
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 Synthetic studies toward the kempane diterpenes.
 Diels\^a&#x20AC;&#x201C;Alder additions to bicyclic dienes
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_journal_issue                   20
_journal_name_full
'Journal of the Chemical Society, Perkin Transactions 1'
_journal_page_first              2644
_journal_paper_doi               10.1039/b104924k
_journal_year                    2001
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_computing_cell_refinement       'MSC/AFC Diffractometer Control'
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_computing_data_reduction
'teXsan for Windows version 1.06 (MSC, 1997-1999)'
_computing_publication_material
'teXsan for Windows version 1.06 (MSC, 1997-1999)'
_computing_structure_refinement
'teXsan for Windows version 1.06 (MSC, 1997-1999)'
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_refine_ls_extinction_expression 'equ(3) Acta Cryst.(1968) A24, p213.'
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_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     'w = 1/[\s^2^(Fo) + 0.00008|Fo|^2^]'
_refine_ls_weighting_scheme      sigma
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_reflns_threshold_expression     I>1.50\s(I)
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_cod_depositor_comments
;
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 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_cell_volume        1527.8(7)
_cod_original_sg_symbol_H-M      'P 43       '
_cod_original_formula_sum        'C18 H20 O5 '
_cod_database_code               7216899