๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Reaction of 4-methoxy-1-benzopyrylium,-benzothiapyrylium, and -benzoselenapyrylium salts with some nucleophilic agents

โœ Scribed by A. I. Tolmachev; M. A. Kudinova; L. M. Shulezhko


Book ID
112341650
Publisher
Springer US
Year
1977
Tongue
English
Weight
335 KB
Volume
13
Category
Article
ISSN
0009-3122

No coin nor oath required. For personal study only.


๐Ÿ“œ SIMILAR VOLUMES


Reaction of 4-t-butyldimethylsiloxy-1-be
โœ Hideharu Iwasaki; Takashi Kume; Yohsuke Yamamoto; Kin-ya Akiba ๐Ÿ“‚ Article ๐Ÿ“… 1987 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 243 KB

4-t-Butyldimethylsiloxy-l-benzopyrylium salt (2,) was prepared in situ from chromone (1) and t-butvldimethvlsilvl triflate and the salt reacted with enol silyl ethe?s, ketene silyl acetals and active methylene compounds to afford 2-substituted 4-t-butyldimethylsiloxy-2H-l-benzopyrans (33, in high yi