1,2-Naphthoquinone-2-thiosemicarbazone as a new acid-base indicator in isopropyl and tert-butyl alcohol media

Study of semicarbazones and thiosemicarb

Study of semicarbazones and thiosemicarbazones derived from 1,2-naphthoquinone, as acid—base indicators: Evaluation of their transition limits through the chromaticity co-ordinates

✍ A. Izquierdo; E. Bosch; V. Rodrigo 📂 Article 📅 1982 🏛 Elsevier Science 🌐 English ⚖ 392 KB

Synthesis of (S)-(+)-2-tert-butyl-2-meth

Synthesis of (S)-(+)-2-tert-butyl-2-methyl-1,3-benzodioxole-4-carboxylic acid: A new type chiral derivation reagent for amines and alcohols

✍ Yoshihiro Nishida; Hiroshi Ohrui; Hiroshi Meguro 📂 Article 📅 1989 🏛 Elsevier Science 🌐 French ⚖ 208 KB

A new chiral derivation reagent was developed for chiral amines and 104, 3775 (1982).

Preparation and Use in Amino Acid Synthe

Preparation and Use in Amino Acid Synthesis of a New Chiral Glycine Derivative – (R)- and (S)-tert-Butyl 2-tert-Butyl-4-methoxy-2,5-dihydroimidazole-1-carboxylate (BDI)☆

✍ Dieter Seebach; Matthias Hoffmann 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 612 KB

The title compound BDI is prepared on multigram scale, so clean that highly efficient in-situ double alkylations are feasible, in which the sequence of addition of the two either by resolution of the precursor 2-tert-butylimidazolidin-4-one (from glycine amide and pivalaldehyde) through different el

ChemInform Abstract: Chemistry of Azirid

ChemInform Abstract: Chemistry of Aziridine Carboxylic Acids. Part 8. Synthesis of tert- Butyl (2R,3R)-2-Cyano-3-formyl-aziridine-1-carboxylate (III) - A New Potential Building Block for Amino Alcohols and Polyamines.

✍ K. JAEHNISCH 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 27 KB 👁 2 views

Asymmetric Synthesis with 6-tert-Butyl-5

Asymmetric Synthesis with 6-tert-Butyl-5-methoxy-6-methyl-3,6-dihydro-2H-1,4-oxazin-2-one as a New Chiral Glycine Equivalent: Preparation of Enantiomerically Pure α-Tertiary and α-Quaternary α-Amino Acids.

✍ Claus-Juergen Koch; Sona Simonyiova; Joerg Pabel; Annerose Kaertner; Kurt Polbor 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 349 KB 👁 1 views

Asymmetric Synthesis with 6-tert-Butyl-5

Asymmetric Synthesis with 6-tert-Butyl-5-methoxy-6-methyl-3,6-dihydro-2H-1,4-oxazin-2-one as a New Chiral Glycine Equivalent: Preparation of Enantiomerically Pure α-Tertiary and α-Quaternary α-Amino Acids

✍ Claus-Jürgen Koch; Soňa Šimonyiová; Jörg Pabel; Annerose Kärtner; Kurt Polborn; 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 351 KB