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Mazza and Solazzo reported the first confirmed synthesis in 1927. By treating selenium with acetylene and at about 300 °C yields up to 15% selenophene were obtained. . Benzoselenophene (analogue of benzothiophene) was also pro
Dibenzothiophene (DBT, diphenylene sulfide) is the organosulfur compound consisting of two benzene rings fused to a central thiophene ring. It has the chemical formula C 12 H 8 S.
In organic chemistry, dihydroxybenzenes (benzenediols) are organic compounds in which two hydroxyl groups (−OH) are substituted onto a benzene ring (C 6 H 6).These aromatic compounds are classed as phenols.
Suit is a noun meaning an article of clothing; it is also a verb meaning to make/be appropriate. Suite is a noun meaning a set of things forming a series or set. [109] Standard: He got dressed in his new suit. Standard: Before leaving the hotel suite, she checked her lipstick in the mirror. Non-standard: That wall color will suite our apartment ...
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The first published English grammar was a Pamphlet for Grammar of 1586, written by William Bullokar with the stated goal of demonstrating that English was just as rule-based as Latin. Bullokar's grammar was faithfully modeled on William Lily's Latin grammar, Rudimenta Grammatices (1534), used in English schools at that time, having been ...
Diethylbenzenes arise as side-products of the alkylation of benzene with ethylene, which can be described as two steps. The first step is the industrial route to ethylbenzene, which is produced on a large scale as a precursor to styrene.
Grammatical abbreviations are generally written in full or small caps to visually distinguish them from the translations of lexical words. For instance, capital or small-cap PAST (frequently abbreviated to PST) glosses a grammatical past-tense morpheme, while lower-case 'past' would be a literal translation of a word with that meaning.