๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Boron trifluoride promoted cleavage of benzyl carbamates

โœ Scribed by D. Subhas Bose; David E. Thurston


Publisher
Elsevier Science
Year
1990
Tongue
French
Weight
210 KB
Volume
31
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

โœฆ Synopsis


A new efficient method for the cleavage of benzyl carbamates (CBZ protective groups) is described that involves a hard acid (BFs.OE&) -soft nucleophile (EtSH) system. Unlike other available methods, this combination avoids the reduction of olefias, acetylenes, imines, halides and nitro groups, or the possibility of carboxylic ester hydrolysis.


๐Ÿ“œ SIMILAR VOLUMES


Boron trifluoride promoted reactions of
โœ Gene E. Heasley; J. Mark Janes; Stephen R. Stark; Brian L. Robinson; Victor L. H ๐Ÿ“‚ Article ๐Ÿ“… 1985 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 198 KB

N-Haloelectrophiles react with alkenes in the presence of boron trifluoride etherate to give halofluorides and N-halo adducts. There is a diverse group of positive halogen compounds containing the nitrogen-halogen bond. The group includes N-haloamines, N-haloamides, and N-haloimides. Although radic

An efficient synthesis of (+)-aureol via
โœ Masahiko Nakamura; Akiyuki Suzuki; Mari Nakatani; Takamasa Fuchikami; Munenori I ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 86 KB

A novel marine natural product, (+)-aureol (1), was efficiently synthesized starting from the cis-fused decalin derivative 4. The synthetic method features boron trifluoride etherate-promoted rearrangement/cyclization reaction of (+)-arenarol (2) to form (+)-aureol (1) with complete stereoselectivit