Organic Chemistry Alkenes and Alkynes Flashcards

A collection of vocabulary flashcards covering addition reactions, stereochemistry, and synthesis mechanisms for alkenes and alkynes based on lecture notes.

Hydrobromation

The process of converting Alkene $\rightarrow$ halogenalkane; it involves $enationers$ during asymmetry and requires $HXx2$ and anti-addition for alkynes.

Marboribor

A rule related to alkene hydration and carbocation stability used when converting Alkenes $\rightarrow$ alcohol.

1,2-hydride shift

A carbocation rearrangement performed for ring strain, resonance, or to achieve a better carbon stability.

Hydroboration Oxidation

A 2-step reaction ($1. BHz$, THF and $2. 1182, \text{-in}$) that converts alkene $\rightarrow$ alcohol (anti-mark) via syn-addition.

Hydrogenation

The conversion of alkene/alkyne or pas into alkanes using a metal catalyst such as $Pt, P +0, >$ via syn addition.

Anti-addition (Halogenation)

The conversion of alkene $\rightarrow$ halogenoalkane and $enationers$ using $X_2$.

Epoxidation

Uses $perasia$ ($r-C=O-O-H$) to convert alkene $\rightarrow$ epoxide ring and $sarboxylic$ acid.

Halide + Water w/ Alkene

A reaction that converts alkene to a trans halohydrin ($Hansalkana$ with $X$ and $on$).

Epoxide Destruction (anti-dio)

Conversion of an epoxide into a $1,2-dio$ (double alcohol) using $H^+$, $OH^-$, or $H_3O^+$.

Syn-did

Produces a $cis-did ring$ from an alkene using $1. Osty Ring$ ($CHSO_y$) and $2. H_2O$ via a $Cosmate estery$.

Carbene (Enla)

A carbenoid reaction where alkene $\rightarrow$ $zu/Su$ propane using $CH_2ln$ and $Zn/Cu$.

Dihalocyclopropane Formation

Reaction of an alkene with a base and $CHX_3$ (dihalocarbene) to produce a dihalocyclopropane.

Ozonolysis

Alkene conversion to Ketones/aldehydes using $1. 07, DCM y$ and $2. Me, S \text{ (DMS)}$.

Polymerization

Process where a terminal alkene becomes a polymer using $banzogt Peroxide$ via $homolytic cleavage$.

Isotactic

A polymer stereochemistry where the chiral centers are the same.

Syndidtactic

A polymer stereochemistry where the chiral centers are alternating.

Atactic

A polymer stereochemistry where the chiral centers are random.

Tartomarization

Process where alkyne $\rightarrow$ $eno$ $\rightarrow$ Ketone; for aldehydes, it uses $1. BHz$ and $2. H282$ ($eno$ occurs in acid or base).

Lindler Catalyst

A specific catalyst used to produce a $cis-alkene$ from an alkyne.

Li/Na for trans-alkene

Uses $Li/Na, NH_3$ to convert an alkyne into a trans product (noted as $trans-alkyne NHz$).

Terminal to Internal Alkyne

Conversion involving base (higher $pK_a$ than alkyne) and alkylation (e.g., $CH_3-I$) which must attack $1^{\text{o}}$ carbon only.

Allylic Bromination

Reaction that places $Br$ in the allylic position of an alkene ring.

Benzyllic Briminination

Reaction that involves the addition of $Br$ to the benzylic position.

Grignard Rxh

Reaction where $R-X + Mg \rightarrow n-mg-X$ (Grignard Reagent); it reacts with $D_2O$ to form $R-D$ and $DO-MgX$.