An efficient and convenient route for the construction of helical 'S'shaped dioxathia-and
oxadithiahelicenes with oxygen and sulfur atoms located in the middle of the outer helix has …

An efficient and concise route for the construction of thiochromene based oxahelicenes in
which heteroatoms are located on the outer helix through base-induced ring transformation …

An expeditious, metal free, simple and convenient synthesis of partially reduced thia [5]
helicenes and oxa-thia [5] helicenes, appended with nitrile and amino functionalities such as …

The present approach to heterohelicenes provides original [5] oxa-and thiahelicenes, where
both oxygen and sulfur atoms are located at the end of the inner helix. Quantum chemical …

Three unsymmetric thiophene-based [7] helicenes, namely, endo-exo-UH-1, endo-top-UH-2,
and exo-top-UH-3, with different isomeric locations of sulfur atoms in two terminal thiophene …

With 2-octyl dithieno [2, 3-b: 3', 2'-d] thiophene as raw material, three steps including
formylation, McMurry reaction and photocylization were employed to generate dioctyl …

Non-photochemical syntheses of optically active dimethyl [7] thiaheterohelicenes (P)-(+)-14
and (M)-(−)-14 are described. The key transformations in the syntheses are the metal …

The reaction of helical quinone with thiols in the presence of acid such as HCl, para-toluene
sulfonic acid (pTSA), or Yb (OTf) 3· 3H2O to form resulted in the formation of thioalkoxy …

Efficient and versatile synthetic routes to functionalized tetrathia [7] helicenes (7‐THs) are
described. The key intermediates of these methodologies are 2‐bromo‐3, 3′‐bibenzo [1, 2 …

An efficient and convenient synthesis of partially hydrogenated functionalized [5] helicenes
and oxa [5] helicenes, such as (1, 2, 5, 6‐tetrahydro‐3‐oxadibenzo [c, g] phenanthren‐4 …