diallyln.

Brit.

/dʌɪˈalʌɪl/,

/dʌɪˈalɪl/, U.S.

/daɪˈæləl/

Forms: 1800s diallyle, 1800s– diallyl.

Origin: Formed within English, by compounding. Etymons: di- comb. form, allyl n.

Etymology: < di- comb. form + allyl n. In sense 2 after French diallyle (A. Wurtz 1864, in Compt. rend. hebd. de l'Acad. des Sci. 58 460).

Chemistry.

I. Compounds.

1. In the names of substances containing two allyl groups.

ΚΠ

1857 W. A. Miller Elements Chem. III. vii. 500 Sinapoline..by its production in this manner is shown to be diallyl-urea.

1869 H. E. Roscoe Lessons Elem. Chem. (new ed.) xxxvi. 361 An exchange of allyl and sodium takes place, di-allyl ether..being formed.

1947 J. H. Collins in P. I. Smith Pract. Plastics vii. 89/2 Thus it can react first as an alcohol and condense..to give a product containing two vinyl groups e.g. diallyl phthalate.

1977 J. March Adv. Org. Chem. (ed. 2) xii. 563 Treatment of bis-π-allylnickel complexes..with CO gives either a 1,5-hexadiene or a diallyl ketone.

2010 H. S. Stoker Gen., Org., & Biol. Chem. (ed. 5) xiv. 432/1 The compounds associated with garlic ingestion that contribute to bad breath include allyl methyl sulfide, allyl methyl disulfide, diallyl sulfide, and diallyl disulfide.

II. Simple uses.

2. A liquid diene (hydrocarbon) containing two double bonds, whose molecule is equivalent to two allyl groups combined. Now rare.Systematic name: hexa-1,5-diene; CH₂:CHCH₂CH₂CH:CH₂.In some early sources, confused with its isomers in the alkyne series.

ΚΠ

1864 Chem. News 28 May 260/1 The radical diallyl may combine with one or with two molecules of hydriodic acid, and form also corresponding acetates and hydrates.

1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) i. 56 The conversion of diallyl into its tetra-bromide, and the subsequent elimination of four molecules of hydrogen bromide from each molecule of tetra-bromide.

2012 D. Steinborn Fund. Organometallic Catalysis x. 216 Hexa-1,5-diene (diallyl) is formed, which can coordinate to the low-valent metal fragment.

This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022).

单词	diallyl
释义	diallyln. Brit. /dʌɪˈalʌɪl/, /dʌɪˈalɪl/, U.S. /daɪˈæləl/ Forms: 1800s diallyle, 1800s– diallyl. Origin: Formed within English, by compounding. Etymons: di- comb. form, allyl n. Etymology: < di- comb. form + allyl n. In sense 2 after French diallyle (A. Wurtz 1864, in Compt. rend. hebd. de l'Acad. des Sci. 58 460). Chemistry. I. Compounds. 1. In the names of substances containing two allyl groups. ΚΠ 1857 W. A. Miller Elements Chem. III. vii. 500 Sinapoline..by its production in this manner is shown to be diallyl-urea. 1869 H. E. Roscoe Lessons Elem. Chem. (new ed.) xxxvi. 361 An exchange of allyl and sodium takes place, di-allyl ether..being formed. 1947 J. H. Collins in P. I. Smith Pract. Plastics vii. 89/2 Thus it can react first as an alcohol and condense..to give a product containing two vinyl groups e.g. diallyl phthalate. 1977 J. March Adv. Org. Chem. (ed. 2) xii. 563 Treatment of bis-π-allylnickel complexes..with CO gives either a 1,5-hexadiene or a diallyl ketone. 2010 H. S. Stoker Gen., Org., & Biol. Chem. (ed. 5) xiv. 432/1 The compounds associated with garlic ingestion that contribute to bad breath include allyl methyl sulfide, allyl methyl disulfide, diallyl sulfide, and diallyl disulfide. II. Simple uses. 2. A liquid diene (hydrocarbon) containing two double bonds, whose molecule is equivalent to two allyl groups combined. Now rare.Systematic name: hexa-1,5-diene; CH₂:CHCH₂CH₂CH:CH₂.In some early sources, confused with its isomers in the alkyne series. ΚΠ 1864 Chem. News 28 May 260/1 The radical diallyl may combine with one or with two molecules of hydriodic acid, and form also corresponding acetates and hydrates. 1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) i. 56 The conversion of diallyl into its tetra-bromide, and the subsequent elimination of four molecules of hydrogen bromide from each molecule of tetra-bromide. 2012 D. Steinborn Fund. Organometallic Catalysis x. 216 Hexa-1,5-diene (diallyl) is formed, which can coordinate to the low-valent metal fragment. This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022). < n.1857
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