Search results
Results from the WOW.Com Content Network
Butyne is an alkyne that contains 4 carbon and 6 hydrogen. It contains one triple bond and has two isomeric organic chemical compounds: 1-Butyne (ethylacetylene)
The C≡C bond distance of 118 picometers (for C 2 H 2) is much shorter than the C=C distance in alkenes (132 pm, for C 2 H 4) or the C–C bond in alkanes (153 pm). [3] Illustrative alkynes: a, acetylene, b, two depictions of propyne, c, 1-butyne, d, 2-butyne, e, the naturally occurring 1-phenylhepta-1,3,5-triyne, and f, the
2-Butyne (dimethylacetylene, crotonylene or but-2-yne) is an alkyne with chemical formula CH 3 C≡CCH 3. Produced artificially, it is a colorless, volatile, pungent liquid at standard temperature and pressure .
[7] [8] Chemical structure of acetylenedicarboxylate. Acetylenedicarboxylate (often abbreviated as ADC or adc) is a divalent anion with formula C 4 O 2− 4 or [O 2 C−C≡C−CO 2] 2−; or any salt or ester thereof. The anion can be derived from acetylenedicarboxylic acid by the loss of two protons.
4-methylpent-2-yne; 3,3-dimethylbut-1-yne This page was last edited on 22 May 2021, at 18:45 (UTC). Text is available under the Creative Commons Attribution ...
This nucleophilic reagent adds to carbonyl groups, producing alcohols and esters. [7] Whereas purified propyne is expensive, MAPP gas could be used to cheaply generate large amounts of the reagent. [8] Propyne, along with 2-butyne, is also used to synthesize alkylated hydroquinones in the total synthesis of vitamin E. [9]
Butan-2-yl (sec-butyl) group is chiral. The carbon atom at position 2 is a stereocenter. It has four different groups attached: −H, −CH 3, −CH 2 −CH 3, and −R (the R group is not equal to those three groups). The names of the two chiral groups are: (2S)-butan-2-yl and (2R)-butan-2-yl.
For example, the isopropyl group (IUPAC: prop-2-yl) −CH(CH 3) 2 corresponds to the isopropylidene group =C(CH 3) 2 (IUPAC: prop-2-ylidene). The group is not typically used in common names of branched alkenes - e.g. 3-methylenepentane, the simplest compound that systematically includes an alkylidene group, [Note 1] is commonly known as 2-ethyl ...