Diels-Alder trapping of in situ generated dienes from 3,4-dihydro-2H-pyran with p-quinone catalysed by p-toluenesulfonic acid.
Mohan Raj, Radhakrishnan; Balasubramanian, Kalpattu K.; Easwaramoorthy, Deivanayagam; Organic & biomolecular chemistry 15 (2017) 1115–1121; doi:10.1039/c6ob02006b

data_7155432
_publ_section_title
;
 Diels-Alder trapping of in situ generated dienes from
 3,4-dihydro-2H-pyran with p-quinone catalysed by p-toluenesulfonic acid.
;
_journal_issue                   5
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              1115
_journal_page_last               1121
_journal_paper_doi               10.1039/c6ob02006b
_journal_volume                  15
_journal_year                    2017
_chemical_formula_moiety         'C16 H16 Cl2 O4'
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_symmetry_space_group_name_Hall  '-P 2ybc'
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;
2016-12-22 deposited with the CCDC.
2017-01-05 downloaded from the CCDC.
;
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'Bruker SMART APEXII area-detector diffractometer'
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_exptl_absorpt_process_details   '(<i>SADABS</i>; Bruker, 2008)'
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_refine_ls_structure_factor_coef Fsqd
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'w=1/[\s^2^(Fo^2^)+(0.0425P)^2^+0.5884P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_number_total             3369
_reflns_threshold_expression     'I > 2\s(I)'
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_cod_depositor_comments
'Adding full bibliography for 7155432--7155435.cif.'
_cod_database_code               7155432
_shelx_shelxl_version_number     2016/4
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