1,2-Didehydrobenzene (the aryne derived from benzene) and its derivatives formed by substitution; see arynes, dehydroarenes. The terms m- and p-benzyne are occasionally, but erroneously, used for 1,3- and 1,4-didehydrobenzene, respectively.
PAC, 1995, 67, 1307 (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1322
PAC, 1994, 66, 1077 (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1088