A facile generation of C–S bonds via one-pot, odourless and efficient thia-Michael addition reactions using alkyl, aryl or allyl halides, thiourea and electron-deficient alkenes in wet polyethylene glycol (PEG 200) under mild reaction conditions
An efficient and odourless synthesis of thia-Michael adducts by the reaction of various organic halides (primary, secondary, tertiary, allylic, and benzylic), structurally diverse electron-deficient alkenes (ketones, esters, and acrylonitrile) and thiourea in the presence of sodium carbonate in wet polyethylene glycol (PEG 200) at 30–35 °C has been developed. This protocol is also a highly useful method
Condensation of Propan-2-one with Formaldehyde and Propane-2-thiol
作者:L. A. Baeva、R. M. Nugumanov、L. F. Biktasheva、R. L. Safiullin
DOI:10.1134/s1070363220040015
日期:2020.4
AbstractThree-component condensation of propan-2-one with formaldehyde and propane-2-thiol in the presence of sodium hydroxide afforded 3-[(propan-2-yl)sulfanyl)]methyl}but-3-en-2-one or 4-[(propan-2-yl)sulfanyl]-3-[(propan-2-yl)sulfanyl]methyl}butan-2-one, depending on the amount of the base. The formation of 4-[(propan-2-yl)sulfanyl]-3-[(propan-2-yl)sulfanyl]methyl}butan-2-one from 4-[(propan
W-Aliphatic and cycloaliphatic-hydrocarbonoxy-2,6-alkadiene and
申请人:Sandoz Ltd., (Sandoz AG)
公开号:US03932483A1
公开(公告)日:1976-01-13
The present invention concerns unsaturated ethers or thioethers of the formula: ##EQU1## wherein R.sub.1 is an aliphatic or alicyclic hydrocarbon, R.sub.2 and R.sub.3 are H or alkyl, Y is cyano, amido, a ketone or an acid esters, ##EQU2## is an ether, thioether or a saturated or unsaturated c--c bond and n is an integer, which exhibit insecticidal properties.
Antimetaboliten II Über die Herstellung und Eigenschaften einiger Analoga der Mevalonsäure
作者:H. U. Daeniker、J. Druey
DOI:10.1002/hlca.19600430406
日期:——
Die Synthese von β-Hydroxy-β-methyl-δ-mercapto-valeriansäure und analogen Verbindungen wird beschrieben.
描述了β-羟基-β-甲基-δ-巯基戊酸和类似化合物的合成。
NANOCOMPLEXES OF MODIFIED PEPTIDES OR PROTEINS
申请人:Tufts University
公开号:US20160129120A1
公开(公告)日:2016-05-12
A nanocomplex containing a delivery agent and a pharmaceutical agent. The nanocomplex has a particle size of 50 to 1000 nm, the delivery agent binds to the pharmaceutical agent via non-covalent interaction or covalent bonding, and the pharmaceutical agent is a modified peptide or protein formed of a peptide or protein and an added chemical moiety that contains an anionic group, a disulfide group, a hydrophobic group, a pH responsive group, a light responsive group, a reactive oxygen species responsive group, or a combination thereof.