3/4

When 3 out of 4 friends in a friend group have had sex, and the only virgin in the group of 4 feels left out.

Person A: “Oh did you see that ugly guy the other day?

Person B: “yeah he’s definitely in a 3/4 friend group, he’s the 4”

by Vorckor96 August 25, 2019

3.4

"All the time" or "constantly."

It's derived from the term 24/7. 24/7 is actually a fraction, so we can calculate it in its repeating decimal form. 24/7=3.428571...

"3.4" is just used because it's much easier to type and say than the previously mentioned decimal equivalent.

Joe: OH NOES I GOTS TEH SHITZ!!!!111 I think im SICK AGAIN! =-o :-\
Phil: You're sick 3.4, you really need to go to the doctor... or go to bed at a normal time... OR stop eating fast food every day...

by no_one_2000 February 9, 2005

3/4 Stance

It is a football term used to describe how you get into a crouched position hovering over a toilet bowl. This is due to a disgust for sitting on toilet seats. Be sure to put the seat up first with your foot.

I entered the shitter and discovered there were no paper seat covers. It don't matter cuz I get in my 3/4 Stance to fire off Scuds!

by will bitten March 6, 2017

3,4-MethyleneDioxyPhenyl-2-Propanol

3,4-MethyleneDioxyPhenyl-2-Propanol (MDP2Pol) is a chemical with a boiling point of 125°C at 25mmHg. MDP2Pol is a yellowish oil which is an alcohol. It is formed from dilute phosphoric acid hydration of safrole (sulfuric acid isn't used because sulfuric acid is an oxidizing acid which rearranges MDP2Pol (3,4-MethyleneDioxyPhenyl-2-Propanol) to MDP1Pol (3,4-MethyleneDioxyPhenyl-1-Propanol). MDP2Pol is also formed by oxymercuration demercuration of safrole. MDP2Pol can be oxidized to MDP2P (3,4-MethyleneDioxyPhenyl-2-Propanone) by either sodium chlorite or sodium hypochlorite in hydrochloric acid and the byproduct is chlorine gas (wear a gas mask and do the reaction outside). It can also be oxidized by lead acetate. 3,4-MethyleneDioxyPhenyl-2-Propanol is also called Sesamyl-2-Propanol (Se2Pol, Ses2Pol, Sm2Pol), hydroxysafrole, and Sesamylisopropanol.

I formed 3,4-MethyleneDioxyPhenyl-2-Propanol by hydrating safrole with an aqueous dilute solution of phosphoric acid.

by CognitiveFuel November 18, 2022

3,4-MethyleneDioxyPhenyl-2-Propanone

3,4-MethyleneDioxyPhenyl-2-Propanone (MDP2P) is a yellow chemical that has a melting point of 87-88 °C and a Boiling point range of 115-170 °C at around 30 mmhg. MDP2P can be synthesized by oxidation of MDP2Pol (3,4-MethyleneDioxyPhenyl-2-Propanol) using either sodium chlorite or sodium hypochlorite in hydrochloric acid and a byproduct is chlorine gas (if hydrochloric acid isn't used, then you will get the haloform reaction). MDP2P can also be synthesized by a grignard reaction of 3,4-MethyleneDioxyBenzyl magnesium chloride (formed from 3,4-Methylenedioxybenzyl chloride and magnesium turnings in diethyl ether) and acetonitrile followed by hydrochloric acid work-up. MDP2P can also be synthesized from wacker oxidation of safrole. Reaction of MDP2P with an ethanol solution of ethylamine and Aluminum Galinstan amalgam reduces the MDP2P-ethylimine intermediate into MDEA. 3,4-MethyleneDioxyPhenyl-2-Propanone is a yellow oily ketone. It is yellow green in the sunlight. MDP2P can also be synthesized by reacting sesamyl tosylate (SmOTs,3,4-Methylenedioxyphenyl tosylate) with ethyl acetoacetate and sodium ethoxide and Copper iodide catalyst and heat. 3,4-MethyleneDioxyPhenyl-2-Propanone is also called Sesamyl-2-Propanone (Se2P, Ses2P, Sm2P), Sesamylacetone, and Piperonyl Methyl Ketone.

I synthesized 3,4-MethyleneDioxyPhenyl-2-Propanone (MDP2P) by reacting 3,4-MethyleneDioxyBenzyl magnesium chloride and acetonitrile followed by hydrochloric acid work-up.

by CognitiveFuel October 29, 2022

3,4-Methylenedioxybenzyl chloride

3,4-Methylenedioxybenzyl chloride (MDBnCl; Piperonylchloride; Sesamyl methyl chloride; 3,4-Methylenedioxyphenyl methyl chloride) is a chemical that is used in organic synthesis. It's melting point is 20.5 °C. It's boiling point is 97-100 ° at 1 mmHg. MDBnCl is used to synthesize other chemicals like MDP2P (3,4-MethyleneDioxyPhenyl-2-Propanone) and MDP2Bu 3,4-MethyleneDioxyPhenyl-2-Butanone; 1-(3,4-Methylenedioxy)phenyl-2-butanone via MDBn-MgCl (3,4-Methylenedioxybenzyl magnesium chloride) and acetonitrile or propionitrile and HCl acid work-up.

3,4-Methylenedioxybenzyl chloride is very useful in the laboratory.

by CognitiveFuel October 29, 2022

3,4-Methylenedioxyphenol

3,4-Methylenedioxyphenol is another chemical name for sesamol. It's found in sesame seeds.

3,4-Methylenedioxyphenol is a great supplement.

by HawaiianPunch1 July 8, 2021