68394-41-2

Upstream product

• 68394-40-1 ((1S,2S)-1,2-bis-benzyloxymethyl-ethane-1,2-diyldioxy)-bis-acetic acid 
• 83892-76-6 2,3-Bis-O-<2'-tetrahydropyranyloxyethyl>-1,4-di-O-benzyl-L-threitol 
• 107-07-3 2-chloro-ethanol 
• 861921-30-4 2,3-di-O-allyl-1,4-di-O-benzyl-L-threitol 
• 17401-06-8 (2S,3S)-1,4-bis(benzyloxy)-2,3-butanediol 
• 68394-39-8 (2S,3S)-(-)-bis(dibenzyloxymethyl)-2,2-dimethyl-1,3-dioxolane 

Downstream Products

• 83892-77-7 2,3-Bis-O-<2'-p-tolylsulfonyloxyethyl>-1,4-di-O-benzyl-L-threitol 
• 861921-31-5 2,3-di-O-(2-phthalimidoethyl)-1,4-di-O-benzyl-L-threitol 
• 827623-94-9 2,3-bis-O-(2-aminoethyl)-1,4-di-O-benzyl-L-threitol 
• 83892-78-8 (S,S,S,S)-1,2,7,8-Tetrakis-12-crown-4 
• 83892-83-5 (S,S,S,S)-1,2,7,8-Tetrakis-12-crown-4 

Relevant academic research and scientific papers

Substituted triethylene glycols from dibutylstannylene acetals

Stannylene acetals prepared from disubstituted vicinal diols can be alkylated with a half equivalent of 1,2-dibromoethane to produce tetrasubstituted triethylene glycols 2, or with two equivalents of 2-chloroethanol to produce disubstituted triethylene glycols 1.

Synthesis and determination of alkali metal binding selectivities of chiral macrocyclic bisamides derived from D-mannitol and L-threitol possessing 2,6-pyridinedicarboxamide subunits

Five chiral macrocyclic bisamides derived from d-mannitol and l-threitol, possessing C2 symmetry, were obtained by a macrocyclization reaction under two different conditions (MeOH, 12 kbar, rt or MeONa/MeOH, 1 bar, rt). Their applications for alkali metal binding processes are studied using ESI-MS technique.

Substituted diether diols by ring-opening of carbocyclic and stannylene acetals

Reduction of malonaldehyde bis(ethylene and propylene acetals) with borane or monochloroborane produces diether diols 1 and 2 in high yield. Similar reduction of glyoxal his(ethylene acetals) has only limited utility for the preparation of tetrasubstituted triethylene glycols 3. Organotin chemistry is complementary: stannylene acetals prepared from disubstituted vicinal diols can be alkylated with half an equivalent of 1,2-dibromoethane to produce tetrasubstituted triethylene glycols 3, or with two equivalents of 2-chloroethanol to produce disubstituted triethylene glycols 4.