Ambergris and/or indole-like compositions of odoriferous substances
申请人:SYMRISE AG
公开号:US10920169B2
公开(公告)日:2021-02-16
The present invention primarily relates to the use of one or more compound(s) of formula (I)
as fragrance, wherein R is methyl or ethyl and R1 is H, methyl or ethyl. The invention further relates to new fragrance compositions comprising one or more compound(s) of formula (I), as described herein, the use of said fragrance compositions, perfumed articles comprising said fragrance compositions, and various methods of perfuming said articles or for imparting, modifying and/or enhancing certain olfactory notes.
Alkyl groups in trialkylboranes were successfully transferred to carbonylcompounds in the presence of the platinum cathode and copper anode by electrochemical method. The new, mild electrochemical alkyl transfer reaction produced various substituted alcohols in good yields.
The samarium Grignard reaction. In situ formation and reactions of primary and secondary alkylsamarium(III) reagents
作者:Dennis P. Curran、Michael J. Totleben
DOI:10.1021/ja00041a024
日期:1992.7
primary and secondary radicals are rapidly reduced in THF/HMPA to form primary- and secondary-alkylsamarium reagents. The primary- and secondary-radicals can be formed either by direct SmIsup 2} reductions of primary- and secondary-halides or by a previous rapid radical cyclization. The samarium reagents have moderate stability in solution, and they react with a variety of typical electrophiles, including
[EN] 4-T-BUTYLGABAPENTIN AND ITS SYNTHESIS<br/>[FR] 4-T-BUTYLGABAPENTINE ET SYNTHESE DE CE COMPOSE
申请人:HIKAL LTD
公开号:WO2005087709A1
公开(公告)日:2005-09-22
The present invention relates to compounds cis (Z) and trans (E) stereoisomers of 4-t-butylgapentin of formula (11) and (12) and a process for the preparation of the said stereoisomers.
The present invention relates to compounds cis (Z) and trans (E) stereoisomers of 4-t-butylgabapentin of formula (11) and (12) and a process for the preparation of the said stereoisomers.