"Ylide" Pronounce,Meaning And Examples
"Ylide" Natural Recordings by Native Speakers
"Ylide" Meaning
An ylide is a functional group in organic chemistry that consists of a negatively charged carbon atom bonded to a positively charged group or atom. It is a type of carbanion and has the general structure: :C(R), where : denotes a negative charge and R can be a hydrogen atom or a hydrocarbon or heteroatom group.
Ylidic carbanions are ambidentate nucleophiles, which means that they can donate their negative charge to either the carbon atom or the positively charged group. They are highly nucleophilic and can react with electrophiles at both carbon and nitrogen atoms.
Examples of ylides include:
1. Wittig reagent (Ph3PO CHR2+), a phosphonium ylide used in the Wittig reaction
2. Shubin ylide (alkylimethylidyne anions), a class of ylides used in elimination reactions.
3. ylide-stabilized phosphorus ylides (YaaP+—CH), which are also known as Staudinger reactions, used in organophosphorus chemistry.
"Ylide" Examples
Ylide
Definition
A ylide is a species with a negative charge on an atom that is not the same as the atom that has the most negative charge in the species, typically a negative one bonded to a carbon atom that carries a positive formal charge.Examples:
In Chemistry: Oxaphosphirane ylides are a type of ylide that are often used as precursors in organic synthesis.
In Organic Synthesis: (trimethylsilyl)methylidene 2SCH2) is an example of a ylide that is used in the cyanide chemistry of silicon compounds.
In Photochemistry: Aminocyclopropane ylides (ACPs) are a class of organophosphinic ylide that have been shown to have potential applications in the development of luminescent chemical sensors and biosensing technologies.
In Medicinal Chemistry: "Ylide in the enzyme-tetrathyrobiotin in photolyase action mechanism": In an enzyme-mediated process, the transfer of a ylide from the enzyme tetrathyrobiotin to an acceptor molecule via the action of light is facilitated; this process is referred to as the " En3H++CAF/FAX tymonia ylide procedure".
General interest in advanced spectroscopy: An extremely reactive type of ylide called diaryl alkoxide anion "SZ-NHC (Ar4) or ”)[/verbs].
"Ylide" Similar Words
Yishuv
In Hebrew, a "yishuv" (also spelled "yishuv" or "yishuvim" for plural) refers to a Jewish settlement in what is now Israel, dating back to the early 19th century. The term encompasses various forms of Jewish communities, including:<br><br>1. Agricultural settlements (kibbutzim and moshavim), which were established to promote Zionism and self-sufficiency among Jewish people.<br>2. Urban communities (towns and cities), which were founded to provide Jewish settlers with access to education, healthcare, and cultural facilities.<br>3. Neighborhoods and suburbs, which were often established by new immigrants and provided affordable housing and a sense of community.<br><br>The term "yishuv" is significant in the history of the State of Israel, as the early Jewish settlements in the region formed the basis for the Jewish homeland. Many Israelis proudly identify with the values and ideals of the yishuv movement, which emphasized labor, self-reliance, and social responsibility.
Yisrael
Yixing
Yiyang
Yizhou
"Yizhou" is a Chinese word, and it appears to be a concept related to the Earth or a territory. In modern Chinese, it can mean "special administrative region" or " territory under special administration".<br><br>In ancient Chinese, during the Han Dynasty, Yizhou (隔州) referred to a province or a larger area of several counties.
Ylang-ylang
The ylang-ylang tree (Cananga odorata) produces highly fragrant yellow flowers that are used in perfumes, essential oils, and various traditional medicine practices. The flower is native to the Philippines and is also known as the "flower of flowers". The name "ylang-ylang" comes from the Tagalog language and is derived from the sound the flowers make when they drop off the tree.
Ylem
A term with a rich history!<br><br>Ylem refers to the fundamental substance or material from which the universe was created in ancient Greek and Renaissance philosophies. In this context, it was considered a primordial substance from which the universe evolved.<br><br>In another sense, ylem can also refer to the prime matter or fundamental substance of the universe, which is a concept in philosophical and alchemical traditions.
Ylid
Ymca
Ymer
Ymir
Yngvi
Yo-yo
Yo-yos
Yo
A colloquial or informal way to greet someone, similar to "hi" or "hello". It is often used in casual or friendly conversations, particularly in spoken language.
Yob