Preparation of N-aryl-4-oxo-4H-1-benzothiopyran-2-acetamides from trilithiated acetoacetanilides and lithiated methyl thiosalicylate

1999 ◽  
Vol 77 (1) ◽  
pp. 94-97 ◽  
Author(s):  
April J Angel ◽  
Anne E Finefrock ◽  
Kristen L French ◽  
Douglas R Hurst ◽  
Angela R Williams ◽  
...  
Keyword(s):  
Key Words ◽  
Lithium Diisopropylamide ◽  
Strong Base ◽  
Multiple Anion Synthesis ◽  
Acid Cyclization

Acetoacetanilide and substituted acetoacetanilides were trilithiated in excess lithium diisopropylamide, and the polylithiated intermediates were regioselectively condensed with lithiated methyl thiosalicylate, followed by acid cyclization to afford substituted N-aryl-4-oxo-4H-1-benzothiopyran-2-acetamides (thiochromone-2-acetamides).Key words: thiochromones, strong-base multiple anion synthesis, Claisen-type condensation.

Preparation of 4-anilino-6-aryl-2H-pyran-2-ones from trilithiated acetoacetanilides and aromatic esters

2004 ◽  
Vol 82 (5) ◽  
pp. 659-664 ◽  
Author(s):  
Jennifer R Downs ◽  
Sally P Grant ◽  
Jessica D Townsend ◽  
Deborah A Schady ◽  
Stefan J Pastine ◽  
...  
Keyword(s):  
Lithium Diisopropylamide ◽  
Aromatic Esters ◽  
Acid Cyclization

Acetoacetanilide and 4′-chloroacetoacetanilide were trilithiated with excess lithium diisopropylamide and condensed with several aromatic esters, followed by neutralization, separate acid cyclization, and rearrangements. After C-acylation of trilithiated acetoacetanilides and cyclization to 4H-pyran-4-ones, these compounds underwent multistep rearrangements to 4-anilino-6-aryl-2H-pyran-2-ones.Key words: pyranones, trianions, Claisen-type condensations, rearrangements.

Tautomerism in ketomethyl quinolines. Part 3. 4-Ketomethylquinolines

1991 ◽  
Vol 69 (4) ◽  
pp. 696-701 ◽  
Author(s):  
John V. Greenhill ◽  
Hossein Loghmani-Khouzani ◽  
Derek J. Maitland
Keyword(s):  
Key Words ◽  
Lithium Diisopropylamide

A series of 4-ketomethylquinolines has been prepared and their tautomerism investigated. The compounds were prepared from 4-methylquinoline deprotonated with lithium diisopropylamide or potassium ethoxide and treated with esters. Attempted deprotonation with tert-butyllithium or phenyllithium led to 2-substituted-4-methylquinolines. The simple alkyl or aryl 4-keto methylquinolines exist essentially as the keto forms, but the quinoline-4-pyruvates are exclusively or substantially in the enol forms. Key words: ketomethyl quinolines, pyruvates, tautomerism, enols.

Multislice imaging of gastrointestinal stromal tumors

2018 ◽  
pp. 3-14
Keyword(s):  
Computed Tomography ◽  
Key Words ◽  
Gold Standard ◽  
Gastrointestinal Stromal Tumors ◽  
Mesenchymal Tumors ◽  
Stromal Tumors ◽  
Preferential Localization ◽  
Multislice Imaging ◽  
Computed Tomography Diagnosis

Gastrointestinal stromal tumors (GIST) are the most common mesenchymal tumors of the digestive tract (1%). These tumors express the CD 117 in 95% of cases. The stomach is the preferential localization (70%). Diagnosis is difficult and sometimes late. Progress of imaging has greatly improved the management and the prognosis. Computed tomography (CT) is the gold standard for diagnosis, staging, and treatment follow-up. The increasing recognition of GIST’s histopathology and the prolonged survival revealed some suggestive imaging aspects. Key words: gastro-intestinal stromal tumors; computed tomography; diagnosis

METHODS OF CONSULTING ON STUDYING THE DEGREE OF MOISTURE SUPPLY OF SLOPE LANDS FOR AGRICULTURAL PRODUCTION IN AZERBAIJAN

2018 ◽  
Author(s):  
Prof.RAE Aliev Z.H.
Keyword(s):  
Key Words ◽  
Agricultural Production ◽  
Soil Ecology ◽  
Arable Soil ◽  
Clean Technology ◽  
Agricultural Product ◽  
Current Information ◽  
Moisture Supply ◽  
Managerial System

The current information on moisture and the temperature of the ground in managerial system by production to agricultural product necessary, in the first place, for taking the operative decisions at development ecological clean technology irrigation under growing agricultural cultures to achieve the maximum harvest. Key words: aerospace methods, COW, moisture, moisture test, arable, soil, ecology, vafer humidity, drill, graduation, tool, etc.

PELAKSANAAN HUKUM KEWARISAN ISLAM DI PENGADILAN AGAMA BANTEN

ALQALAM ◽  
2013 ◽  
Vol 30 (1) ◽  
pp. 158
Author(s):  
Yusuf Somawinata
Keyword(s):  
Key Words ◽  
Islamic Law ◽  
Survey Methods ◽  
Adopted Children ◽  
Inheritance Law ◽  
Library Research ◽  
The Ideal

This article aims at describing the obseroance of wasiat wajibah (compulsory bequeathment) in the Islamic court of Banten, analyzing the provision of the substitute heir and adopted children in the Compilation of  Islamic Law (KHI). In addition, the ideal laws to manage the innheritance rules in Indonesia. This article is library research by using doctrinal approach and using case study and survey methods. The data was, then, analyzed by using analytical descriptive and analytical correlative methods. The result showed that the observance of wasiat wajibah in the Islamic court of  Banten employed by judges is by using the Mawali Hazairin’s Doctrine. The criteria of the adoption of substitute heir and adopted children in the KHI is the attempts of Ulama and many judgees junst in giving legal justice and certainty to the society.   Key Words: Islamic Inheritance Law, Compilation of Islamic Law, Islamic court of  Banten

Phosphorus fertilization in inbred and hybrid rice

1970 ◽  
Vol 19 (2) ◽  
pp. 181-187
Author(s):  
MR Islam ◽  
PK Saha ◽  
SK Zaman ◽  
MJ Uddin
Keyword(s):  
Grain Yield ◽  
Key Words ◽  
Hybrid Rice ◽  
Phosphorus Fertilization ◽  
Phosphorus Fertilizer ◽  
Yield Difference ◽  
P Balance ◽  
Rice Genotypes ◽  
Boro Rice

Five phosphorus rates (0, 5, 10, 20 and 30 kg P/ha) were tested with four rice genotypes in Boro (BRRI dhan36, BRRI dhan45, EH1 and EH2) and T. Aman (BRRI dhan30, BRRI dhan49, EH1 and EH2) season. Phosphorus rates did not influence grain yield irrespective of varieties in T. Aman season while in Boro season P response was observed among the P rates. Application of P @ 10 kg/ha significantly increased the grain yield. But when P was applied @ 20 and 30 kg P/ha, the grain yield difference was not significant. The optimum and economic rate of P for T. Aman was 20 kg P/ha but in Boro rice the optimum and economic doses of P were 22 and 30 kg/ha, respectively. Hybrid entries (EH1 and EH2) used P more efficiently than inbred varieties. A negative P balance was observed up to 10 kg P/ha. Key words: Response; Phosphorus fertilizer; Inbred; Hybrid rice DOI: http://dx.doi.org/10.3329/dujbs.v19i2.8962 DUJBS 2010; 19(2): 181-187

Laparoscopic adrenal cystectomy - report of two cases

1970 ◽  
Vol 19 (1) ◽  
pp. 50-53
Author(s):  
GM Zakir Hossain ◽  
Mofizur Rahman ◽  
Mohammad Rashedul Hasan
Keyword(s):  
Key Words ◽  
College Teachers ◽  
Medical College

Key words: laparoscopic; adrenal cystectomydoi: 10.3329/jcmcta.v19i1.3854Journal of Chittagong Medical College Teachers' Association 2008: 19(1):50-53

HUBUNGAN DISIPLIN MAHASISWA DAN FASILITAS KAMPUS DENGAN PRESTASI MAHASISWA

2018 ◽  
Vol 15 (1) ◽  
pp. 99
Author(s):  
Didi C. Chalil
Keyword(s):  
Student Achievement ◽  
Student Learning ◽  
Key Words ◽  
Learning Process ◽  
Difficulty Level ◽  
Motivation To Learn ◽  
Classroom Learning ◽  
Final Exam ◽  
Lecture Material ◽  
A Value

One indicator of the success ofeducation in the level of classroom learning is when a lecturer is able to build student learning achievement and will be more successful if this achievement can be increased if their attendance is above 80% (minimum 10 times attendance from 12 meetings). If the students can be grown discipline and provided a decent campus facilities, then as difficult as any lecture material or learning process that followed by they undoubtedly will live with feelings of joy, even they will feel sad if that day lecturer could not come because there is a need outside campus.There are four stages of appraisal that apply to each student for each course taken include (1) attendance of 10% (2) Task 20% (3) 30% Semester Exam (UTS) and (4) Final Exam Semester. (UAS) 40%. The writer as a lecturer tries to cultivate motivation to learn from the beginning, in addition to always communicate actively with students who follow the lecture also monitor attendance and assignment, each completed college is always given the practice / tasks are directly given the value, usually given the task quite easily so they can get a value of 100, even if there is a miscalculation, they are still given the opportunity to fix the error so that eventually get a value of 100. With the value of this 100, their motivation to grow and even grow in such a way that spur them to diligent lectures.The difficulty level of the task is balanced with the lecture, the longer it is raised so as to reach the maximum average level of student ability at the end of the lecture meeting...This research reveals that there is no a significant correlation between student achievement to discipline presence of student/mahasiswa with campus facilities. The analyzing was taken from an answer of 55 students who were randomly selected as respondents by filling out the Questionaire that was distributed to them. Key words : achievement, attendance, discipline, campus facility

Narrative, Intertext and Allusion in the Qur'anic Presentation of Job

1999 ◽  
Vol 1 (1) ◽  
pp. 1-25 ◽  
Author(s):  
A. H. Johns
Keyword(s):  
Key Words ◽  
Complex Network ◽  
Key Words And Phrases ◽  
Divine Revelation ◽  
Western Tradition ◽  
Islamic Tradition ◽  
The Impact ◽  
The Way

Job (Ayyūb) is a byword for patience in the Islamic tradition, notwithstanding only six Qur'anic verses are devoted to him, four in Ṣād (vv.41-4), and two in al-Anbiyā' (vv.83-4), and he is mentioned on only two other occasions, in al-Ancām (v.84) and al-Nisā' (v.163). In relation to the space devoted to him, he could be accounted a ‘lesser’ prophet, nevertheless his significance in the Qur'an is unambiguous. The impact he makes is achieved in a number of ways. One is through the elaborate intertext transmitted from the Companions and Followers, and recorded in the exegetic tradition. Another is the way in which his role and charisma are highlighted by the prophets in whose company he is presented, and the shifting emphases of each of the sūras in which he appears. Yet another is the wider context created by these sūras in which key words and phrases actualize a complex network of echoes and resonances that elicit internal and transsūra associations focusing attention on him from various perspectives. The effectiveness of this presentation of him derives from the linguistic genius of the Qur'an which by this means triggers a vivid encounter with aspects of the rhythm of divine revelation no less direct than that of visual iconography in the Western Tradition.

Ectodermal Dysplasia in two siblings: A Case report.

2019 ◽  
Author(s):  
CHAITHRA KALKUR ◽  
NILOFER HALIM ◽  
ANUSHA RANGARE ◽  
Rumisha .
Keyword(s):  
Case Report ◽  
Key Words ◽  
Clinical Features ◽  
Ectodermal Dysplasia ◽  
Heterogeneous Group ◽  
Eccrine Glands ◽  
Key Words Ectodermal Dysplasia

Ectodermal dysplasia is a heterogeneous group of inherited disorder affecting two or more ectodermally derived tissues such as skin, hair, nails, eccrine glands and teeth. The disorder is of two types: Hypohydrotic ectodermal dysplasia/Christ seimens –Touraine syndrome and Hydrotic ectodermal dysplasia/clousten syndrome. Commonly associated signs include hypohidrosis, anomalous dentition, onychodysplasia, hypotrichosis. Multidisciplinary approaches are required for optimal treatment3. Here, we present two cases of 19 and 13 year old male siblings who were diagnosed with the disorder based upon their clinical features. Key Words: ectodermal dysplasia, hypodontia; anomalous dentition.

Sign in / Sign up

Export Citation Format

Share Document