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1439-36-7

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1439-36-7 Usage

Chemical Properties

white to light beige crystalline powder

Uses

Different sources of media describe the Uses of 1439-36-7 differently. You can refer to the following data:
1. Wittig Reagent
2. (Acetylmethylene)triphenylphosphorane is used as a Wittig reagent in synthetic chemistry, especially for the synthesis of functionalized pyrrolidines and cyclobutanones. It plays as a vital role in asymmetric allylboration for enantioselective synthesis of (+)-awajanomycin.It is also employed as a reactant in the preparation of 1,2-dioxanes with antitrypanosomal activity. Further, it is used in the preparation of amphibian pyrrolizidine alkaloids through allylic aminations and silicon-containing acyclic dienone musk odorants. In addition to this, it is involved in Domino Suzuki/Heck coupling reactions to prepare fluorenylidenes.

Check Digit Verification of cas no

The CAS Registry Mumber 1439-36-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,4,3 and 9 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1439-36:
(6*1)+(5*4)+(4*3)+(3*9)+(2*3)+(1*6)=77
77 % 10 = 7
So 1439-36-7 is a valid CAS Registry Number.
InChI:InChI=1/C21H19OP/c1-18(22)17-23(19-11-5-2-6-12-19,20-13-7-3-8-14-20)21-15-9-4-10-16-21/h2-17H,1H3

1439-36-7 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
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  • Detail
  • TCI America

  • (A1439)  (Acetylmethylene)triphenylphosphorane  >98.0%(GC)

  • 1439-36-7

  • 25g

  • 675.00CNY

  • Detail
  • Alfa Aesar

  • (A11410)  (Acetylmethylene)triphenylphosphorane, 99%   

  • 1439-36-7

  • 10g

  • 392.0CNY

  • Detail
  • Alfa Aesar

  • (A11410)  (Acetylmethylene)triphenylphosphorane, 99%   

  • 1439-36-7

  • 50g

  • 1443.0CNY

  • Detail
  • Alfa Aesar

  • (A11410)  (Acetylmethylene)triphenylphosphorane, 99%   

  • 1439-36-7

  • 250g

  • 6651.0CNY

  • Detail
  • Aldrich

  • (158755)  1-(Triphenylphosphoranylidene)-2-propanone  99%

  • 1439-36-7

  • 158755-25G

  • 740.26CNY

  • Detail
  • Aldrich

  • (158755)  1-(Triphenylphosphoranylidene)-2-propanone  99%

  • 1439-36-7

  • 158755-100G

  • 4,670.64CNY

  • Detail

1439-36-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 10, 2017

Revision Date: Aug 10, 2017

1.Identification

1.1 GHS Product identifier

Product name (ACETYLMETHYLENE)TRIPHENYLPHOSPHORANE

1.2 Other means of identification

Product number -
Other names 1-(Triphenylphosphoranylidene)propan-2-one

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1439-36-7 SDS

1439-36-7Relevant articles and documents

Total synthesis of (+)-isomigrastatin

Krauss, Isaac J.,Mandal, Mihirbaran,Danishefsky, Samuel J.

, p. 5576 - 5579 (2007)

(Chemical Equation Presented) Marginally stable natural products: The asymmetric total synthesis of the hydrolytically and thermally labile natural product (+)-isomigrastatin was demonstrated. The thermodynamic instability of a 2E-configured double bond in the context of this 12-membered macrolide was further demonstrated by phosphine-catalyzed isomerization to the 2Z configuration.

The extremely low intrinsic reactivity of the P-(formylmethyl)triphenylphosphonium cation: An artefact due to strong covalent hydration of the carbonyl group

Moutiers,Peng,Peignieux,Pouet,Terrier

, p. 1287 - 1288 (1999)

The title cation is found to exhibit the lowest Marcus intrinsic reactivity known so far for a carbon acid; this situation is shown to reflect a rate-limiting hydration/ dehydration reaction of the aldehyde functionality.

Rh(iii)-catalyzed diastereoselective cascade annulation of enone-tethered cyclohexadienonesviaC(sp2)-H bond activation

Chegondi, Rambabu,Jadhav, Sandip B.,Maurya, Sundaram,Navaneetha, N.

supporting information, p. 13598 - 13601 (2021/12/23)

Herein, we report highly diastereoselective arylative cyclization of enone-tethered cyclohexadienonesviaRh(iii)-catalyzed C-H activation ofN-methoxybenzamides. This reaction proceeds through the formation of a five-membered rhodacycle followed by bis-Michael cascade annulation to access functionalized bicyclic scaffolds with four contiguous stereocenters with a broad substrate scope. These products have excellent functional handles, allowing further synthetic transformation to increase the structural complexity. Furthermore, mechanistic studies of arylative cyclization and a gram-scale experiment are also presented.

Copper-Catalyzed N-O Cleavage of α,β-Unsaturated Ketoxime Acetates toward Structurally Diverse Pyridines

Ding, Xiaojuan,Duan, Jindian,Fang, Zheng,Guo, Kai,Li, Zhenjiang,Mao, Yiyang,Rong, Binsen,Xu, Gaochen,Zhang, Lei,Zhu, Ning

supporting information, p. 2532 - 2542 (2020/03/13)

The copper-catalyzed [4 + 2] annulation of α,β-unsaturated ketoxime acetates with 1,3-dicarbonyl compounds for the synthesis of three classes of structurally diverse pyridines has been developed. This method employs 1,3-dicarbonyl compounds as C2 synthons and enables the synthesis of multifunctionalized pyridines with diverse electron-withdrawing groups in moderate to good yields. The mechanistic investigation suggests that the reactions proceed through an ionic pathway.

Visible-light driven synthesis of polycyclic benzo[: D] [1,3]oxazocine from 2-aminochalcone

Chen, Junhan,Gao, Yu-Qi,He, Yu-Peng,Hou, Yi,Li, Ruoxin,Xie, Weiqing,Zhang, Sheng-Yong,Zhu, Liming

supporting information, p. 6739 - 6742 (2020/07/13)

Herein, we report a tandem cycloisomerization/nucleophilic addition/cyclization of 2-amino chalcone with bifunctional nucleophiles driven by visible light. This cascade process is realized by the irradiation of a blue LED at room temperature, which provides a concise route to structurally diverse benzo[d][1,3]oxazocine scaffolds. Mechanistic studies show that the reaction is initiated with the E to Z isomerization of a C-C double bond upon the irradiation of visible light, followed by cyclization/rearomatization to generate a transient quinolinium intermediate, which is trapped by the nucleophile and cyclized to produce the polycyclic benzo[d][1,3]oxazocine.

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