✦ LIBER ✦

ChemInform Abstract: Regio- and Enantioselective Synthesis of α-Silyl Aldehydes and Ketones via SAMP/RAMP Hydrazones.

✍ Scribed by D. ENDERS; B. B. LOHRAY; F. BURKAMP; V. BHUSHAN; R. HETT

Book ID: 112037402
Publisher: John Wiley and Sons
Year: 2010
Weight: 38 KB
Volume: 27
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199637232

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

ChemInform Abstract: Enantioselective Sy

ChemInform Abstract: Enantioselective Synthesis of α-Sulfenylated Ketones and Aldehydes via α-Thiolation of Metalated SAMP/RAMP Hydrazones.

✍ D. ENDERS; T. SCHAEFER; W. MIES 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 37 KB 👁 1 views

Regio-, Diastereo-, and Enantioselective

Regio-, Diastereo-, and Enantioselective Synthesis ofvic-Diols via α-Silyl Ketones According to the SAMP/RAMP Hydrazone Method

✍ Enders, Dieter ;Nakai, Shiro 📂 Article 📅 1991 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 828 KB

Enantioselective synthesis of α-sulfenyl

Enantioselective synthesis of α-sulfenylated ketones and aldehydes via α-thiolation of metalated SAMP/RAMP hydrazones

✍ Dieter Enders; Thomas Schäfer; Wolfgang Mies 📂 Article 📅 1998 🏛 Elsevier Science 🌐 French ⚖ 776 KB

Asymmetric ot-sulfenylation of lithiated SAMP/RAMP hydrazoncs (3")-2 with disulfides afforded tz-thiolated hydrazones (S,R)-3 in good yields (48-87%) and high diastcreomeric excesses (91-96%). Subsequent oxidative cleavage or acidic hydrolysis of the hydrazones furnished a-thiolated ketones (R)-4a.d

ChemInform Abstract: Enantioselective Sy

ChemInform Abstract: Enantioselective Synthesis of Homoallylamines and β-Amino Acids via Nucleophilic Allylation of SAMP/RAMP-Hydrazones.

✍ D. ENDERS; J. SCHANKAT; M. KLATT 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB

Regio-, Diastereo-, and Enantioselective

Regio-, Diastereo-, and Enantioselective Synthesis of Vicinal Diols via α-Silyl Ketones

✍ Dieter Enders; Shiro Nakai 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 German ⚖ 258 KB

A new versatile and efficient regio-, diastereo-, and enantioselective synthesis of vicinal diols s-trans-4, s-trans-5, and s-cis-4 is described. Symmetrical ketones are converted into their SAMP-or RAMP-hydrazones which are then silylated with (isopropy1oxy)dimethylsilyl chloride, followed by ozono

Asymmetric michael additions via SAMP/RA

Asymmetric michael additions via SAMP/RAMP hydrazones enantioselective synthesis of 2-substituted 4-oxophosphonates

✍ Enders, Dieter ;Wahl, Heiner ;Papadopoulos, Kyriakos 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 979 KB

## Abstract Asymmetric Michael addition of lithiated methyl ketone SAMP hydrazones (S)‐3 to a variety of alkenylphosphonates (E)‐2 followed by oxidative cleavage of the 1,4‐adducts (__S,S__)‐4 by ozonolysis afforded 2‐substituted 4‐oxophosphonates (__S__)‐5 in usually moderate to very good overall