Titanocene Pnictinidene Complexes

2021 ◽  
Author(s):  
Christian Hering-Junghans ◽  
Malte Fischer ◽  
Fabian Reiß
Keyword(s):  
Wittig Reagent

The phospha-Wittig reagent MesTerPPMe3 (MesTer = 2,6-{2,4,6-Me3-C6H2}-C6H3) and arsa-Wittig reagent DipTerAsPMe3 (DipTer = 2,6-{2,6-iPr2-C6H3}-C6H3) have been employed to synthesize the titanocene complexes Cp2Ti(PMe3)PnAr (Pn = P, As) with terminal phosphinidene...

A stereoselective Wittig reagent and its application to the synthesis of 25-hydroxylated vitamin D metabolites

1978 ◽  
Vol 43 (4) ◽  
pp. 790-792 ◽  
Author(s):  
William G. Salmond ◽  
Mary A. Barta ◽  
Jeffrey L. Havens
Keyword(s):  
Vitamin D ◽  
Vitamin D Metabolites ◽  
Wittig Reagent

scholarly journals Synthesis of Substituted 1,3-Diesters of Glycerol Using Wittig Chemistry

2014 ◽  
Vol 9 (5) ◽  
pp. 1934578X1400900
Author(s):  
Henry IC Lowe ◽  
Ngeh J. Toyang ◽  
Charah T. Watson ◽  
Joseph Bryant
Keyword(s):  
Benzoic Acid ◽  
Natural Compound ◽  
Primary Alcohol ◽  
Synthetic Approach ◽  
Triphenyl Phosphine ◽  
Phosphonium Bromide ◽  
New Compounds ◽  
First Time ◽  
Wittig Reagent

1,3-di-O-Cinnamoyl-glycerol is a natural compound isolated from a Jamaican medicinal plant commonly referred to as Ball moss (Tillandsia recurvata). The synthesis of this compound was achieved via a Wittig chemistry process. The synthetic approach started with acylation of a di-protected glycerol with cinnamoyl chloride, deprotection of the glycerol moiety, reaction of the primary alcohol with bromo acetylbromide followed by treatment with triphenyl phosphine to give the corresponding phosphonium bromide. The phosphonium bromide was then converted in situ to the Wittig reagent which is the basis for a novel route to 1,3-di-O-cinnamoyl glycerol. Four analogs were also synthesized, three of which are new and are being reported in this article for the first time. The new compounds include 3-(3,4-diemthoxy-phenyl)-acrylic acid 2-hydroxy-3-(3-ptolyl-acryloyloxy)-propyl ester (3), 2-acetoxy-5-((E)-3-(3-((E’)-3-(3,4-dimethoxyphenyl)acryloyloxy)-2-hydropropoxy)-3-oxoprop-1-enyl)benzoic acid (4) and 4-((E)-3-(3-((E)-3-(3,4-dimethoxyphenyl)acryloyloxy)-2-hydropropoxy)-3-oxoprop-1-enyl)benzoic acid (5). The compounds showed no activity in our anticancer assay.

Reactions between (E)-5,5′-dimesitylbifuranylidenedione and the horner-wittig reagent

1996 ◽  
Vol 37 (51) ◽  
pp. 9255-9258 ◽  
Author(s):  
Leslie Crombie ◽  
Belkys Darwish ◽  
Raymond C.F. Jones ◽  
Dane Toplis ◽  
Michael J. Begley
Keyword(s):  
Wittig Reagent

Development of New Wittig Reagent, Silylfuranmethylid, and Its Reactivity.

ChemInform ◽  
2003 ◽  
Vol 34 (44) ◽  
Author(s):  
Katsunori Tanaka ◽  
Toshiyuki Hata ◽  
Hirokazu Hara ◽  
Shigeo Katsumura
Keyword(s):  
Wittig Reagent
Sign in / Sign up

Export Citation Format

Share Document